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. 2022 May 3;17(5):e0267555. doi: 10.1371/journal.pone.0267555

Assessing the effect of the COVID-19 pandemic, shift to online learning, and social media use on the mental health of college students in the Philippines: A mixed-method study protocol

Leonard Thomas S Lim 1, Zypher Jude G Regencia 2,3, J Rem C Dela Cruz 1, Frances Dominique V Ho 1, Marcela S Rodolfo 1, Josefina Ly-Uson 4, Emmanuel S Baja 2,3,*
Editor: Elisa Panada5
PMCID: PMC9064082  PMID: 35503779

Abstract

Introduction

The COVID-19 pandemic declared by the WHO has affected many countries rendering everyday lives halted. In the Philippines, the lockdown quarantine protocols have shifted the traditional college classes to online. The abrupt transition to online classes may bring psychological effects to college students due to continuous isolation and lack of interaction with fellow students and teachers. Our study aims to assess Filipino college students’ mental health status and to estimate the effect of the COVID-19 pandemic, the shift to online learning, and social media use on mental health. In addition, facilitators or stressors that modified the mental health status of the college students during the COVID-19 pandemic, quarantine, and subsequent shift to online learning will be investigated.

Methods and analysis

Mixed-method study design will be used, which will involve: (1) an online survey to 2,100 college students across the Philippines; and (2) randomly selected 20–40 key informant interviews (KIIs). Online self-administered questionnaire (SAQ) including Depression, Anxiety, and Stress Scale (DASS-21) and Brief-COPE will be used. Moreover, socio-demographic factors, social media usage, shift to online learning factors, family history of mental health and COVID-19, and other factors that could affect mental health will also be included in the SAQ. KIIs will explore factors affecting the student’s mental health, behaviors, coping mechanism, current stressors, and other emotional reactions to these stressors. Associations between mental health outcomes and possible risk factors will be estimated using generalized linear models, while a thematic approach will be made for the findings from the KIIs. Results of the study will then be triangulated and summarized.

Ethics and dissemination

Our study has been approved by the University of the Philippines Manila Research Ethics Board (UPMREB 2021-099-01). The results will be actively disseminated through conference presentations, peer-reviewed journals, social media, print and broadcast media, and various stakeholder activities.

Introduction

The World Health Organization (WHO) declared the Coronavirus 2019 (COVID-19) outbreak as a global pandemic, and the Philippines is one of the 213 countries affected by the disease [1]. To reduce the virus’s transmission, the President imposed an enhanced community quarantine in Luzon, the country’s northern and most populous island, on March 16, 2020. This lockdown manifested as curfews, checkpoints, travel restrictions, and suspension of business and school activities [2]. However, as the virus is yet to be curbed, varying quarantine restrictions are implemented across the country. In addition, schools have shifted to online learning, despite financial and psychological concerns [3].

Previous outbreaks such as the swine flu crisis adversely influenced the well-being of affected populations, causing them to develop emotional problems and raising the importance of integrating mental health into medical preparedness for similar disasters [4]. In one study conducted on university students during the swine flu pandemic in 2009, 45% were worried about personally or a family member contracting swine flu, while 10.7% were panicking, feeling depressed, or emotionally disturbed. This study suggests that preventive measures to alleviate distress through health education and promotion are warranted [5].

During the COVID-19 pandemic, researchers worldwide have been churning out studies on its psychological effects on different populations [69]. The indirect effects of COVID-19, such as quarantine measures, the infection of family and friends, and the death of loved ones, could worsen the overall mental wellbeing of individuals [6]. Studies from 2020 to 2021 link the pandemic to emotional disturbances among those in quarantine, even going as far as giving vulnerable populations the inclination to commit suicide [7, 8], persistent effect on mood and wellness [9], and depression and anxiety [10].

In the Philippines, a survey of 1,879 respondents measuring the psychological effects of COVID-19 during its early phase in 2020 was released. Results showed that one-fourth of respondents reported moderate-to-severe anxiety, while one-sixth reported moderate-to-severe depression [11]. In addition, other local studies in 2020 examined the mental health of frontline workers such as nurses and physicians—placing emphasis on the importance of psychological support in minimizing anxiety [12, 13].

Since the first wave of the pandemic in 2020, risk factors that could affect specific populations’ psychological well-being have been studied [14, 15]. A cohort study on 1,773 COVID-19 hospitalized patients in 2021 found that survivors were mainly troubled with fatigue, muscle weakness, sleep difficulties, and depression or anxiety [16]. Their results usually associate the crisis with fear, anxiety, depression, reduced sleep quality, and distress among the general population.

Moreover, the pandemic also exacerbated the condition of people with pre-existing psychiatric disorders, especially patients that live in high COVID-19 prevalence areas [17]. People suffering from mood and substance use disorders that have been infected with COVID-19 showed higher suicide risks [7, 18]. Furthermore, a study in 2020 cited the following factors contributing to increased suicide risk: social isolation, fear of contagion, anxiety, uncertainty, chronic stress, and economic difficulties [19].

Globally, multiple studies have shown that mental health disorders among university student populations are prevalent [13, 2022]. In a 2007 survey of 2,843 undergraduate and graduate students at a large midwestern public university in the United States, the estimated prevalence of any depressive or anxiety disorder was 15.6% and 13.0% for undergraduate and graduate students, respectively [20]. Meanwhile, in a 2013 study of 506 students from 4 public universities in Malaysia, 27.5% and 9.7% had moderate and severe or extremely severe depression, respectively; 34% and 29% had moderate and severe or extremely severe anxiety, respectively [21]. In China, a 2016 meta-analysis aiming to establish the national prevalence of depression among university students analyzed 39 studies from 1995 to 2015; the meta-analysis found that the overall prevalence of depression was 23.8% across all studies that included 32,694 Chinese university students [23].

A college student’s mental status may be significantly affected by the successful fulfillment of a student’s role. A 2013 study found that acceptable teaching methods can enhance students’ satisfaction and academic performance, both linked to their mental health [24]. However, online learning poses multiple challenges to these methods [3]. Furthermore, a 2020 study found that students’ mental status is affected by their social support systems, which, in turn, may be jeopardized by the COVID-19 pandemic and the physical limitations it has imposed. Support accessible to a student through social ties to other individuals, groups, and the greater community is a form of social support; university students may draw social support from family, friends, classmates, teachers, and a significant other [25, 26]. Among individuals undergoing social isolation and distancing during the COVID-19 pandemic in 2020, social support has been found to be inversely related to depression, anxiety, irritability, sleep quality, and loneliness, with higher levels of social support reducing the risk of depression and improving sleep quality [27]. Lastly, it has been shown in a 2020 study that social support builds resilience, a protective factor against depression, anxiety, and stress [28]. Therefore, given the protective effects of social support on psychological health, a supportive environment should be maintained in the classroom. Online learning must be perceived as an inclusive community and a safe space for peer-to-peer interactions [29]. This is echoed in another study in 2019 on depressed students who narrated their need to see themselves reflected on others [30]. Whether or not online learning currently implemented has successfully transitioned remains to be seen.

The effect of social media on students’ mental health has been a topic of interest even before the pandemic [31, 32]. A systematic review published in 2020 found that social media use is responsible for aggravating mental health problems and that prominent risk factors for depression and anxiety include time spent, activity, and addiction to social media [31]. Another systematic review published in 2016 argues that the nature of online social networking use may be more important in influencing the symptoms of depression than the duration or frequency of the engagement—suggesting that social rumination and comparison are likely to be candidate mediators in the relationship between depression and social media [33]. However, their findings also suggest that the relationship between depression and online social networking is complex and necessitates further research to determine the impact of moderators and mediators that underly the positive and negative impact of online social networking on wellbeing [33].

Despite existing studies already painting a picture of the psychological effects of COVID-19 in the Philippines, to our knowledge, there are still no local studies contextualized to college students living in different regions of the country. Therefore, it is crucial to elicit the reasons and risk factors for depression, stress, and anxiety and determine the potential impact that online learning and social media use may have on the mental health of the said population. In turn, the findings would allow the creation of more context-specific and regionalized interventions that can promote mental wellness during the COVID-19 pandemic.

Materials and methods

Study aims

The study’s general objective is to assess the mental health status of college students and determine the different factors that influenced them during the COVID-19 pandemic. Specifically, it aims:

  1. To describe the study population’s characteristics, categorized by their mental health status, which includes depression, anxiety, and stress.

  2. To determine the prevalence and risk factors of depression, anxiety, and stress among college students during the COVID-19 pandemic, quarantine, and subsequent shift to online learning.

  3. To estimate the effect of social media use on depression, anxiety, stress, and coping strategies towards stress among college students and examine whether participant characteristics modified these associations.

  4. To estimate the effect of online learning shift on depression, anxiety, stress, and coping strategies towards stress among college students and examine whether participant characteristics modified these associations.

  5. To determine the facilitators or stressors among college students that modified their mental health status during the COVID-19 pandemic, quarantine, and subsequent shift to online learning.

Study design

A mixed-method study design will be used to address the study’s objectives, which will include Key Informant Interviews (KIIs) and an online survey. During the quarantine period of the COVID-19 pandemic in the Philippines from April to November 2021, the study shall occur with the population amid community quarantine and an abrupt transition to online classes. Since this is the Philippines’ first study that will look at the prevalence of depression, anxiety, and stress among college students during the COVID-19 pandemic, quarantine, and subsequent shift to online learning, the online survey will be utilized for the quantitative part of the study design. For the qualitative component of the study design, KIIs will determine facilitators or stressors among college students that modified their mental health status during the quarantine period.

Study population

The Red Cross Youth (RCY), one of the Philippine Red Cross’s significant services, is a network of youth volunteers that spans the entire country, having active members in Luzon, Visayas, and Mindanao. The group is clustered into different age ranges, with the College Red Cross Youth (18–25 years old) being the study’s population of interest. The RCY has over 26,060 students spread across 20 chapters located all over the country’s three major island groups. The RCY is heterogeneously composed, with some members classified as college students and some as out-of-school youth. Given their nationwide scope, disseminating information from the national to the local level is already in place; this is done primarily through email, social media platforms, and text blasts. The research team will leverage these platforms to distribute the online survey questionnaire.

In addition, the online survey will also be open to non-members of the RCY. It will be disseminated through social media and engagements with different university administrators in the country. Stratified random sampling will be done for the KIIs. The KII participants will be equally coming from the country’s four (4) primary areas: 5–10 each from the national capital region (NCR), Luzon, Visayas, and Mindanao, including members and non-members of the RCY.

Inclusion and exclusion criteria

The inclusion criteria for the online survey will include those who are 18–25 years old, currently enrolled in a university, can provide consent for the study, and are proficient in English or Filipino. The exclusion criteria will consist of those enrolled in graduate-level programs (e.g., MD, JD, Master’s, Doctorate), out-of-school youth, and those whose current curricula involve going on duty (e.g., MDs, nursing students, allied medical professions, etc.). The inclusion criteria for the KIIs will include online survey participants who are 18–25 years old, can provide consent for the study, are proficient in English or Filipino, and have access to the internet.

Sample size

A continuity correction method developed by Fleiss et al. (2013) was used to calculate the sample size needed [34]. For a two-sided confidence level of 95%, with 80% power and the least extreme odds ratio to be detected at 1.4, the computed sample size was 1890. With an adjustment for an estimated response rate of 90%, the total sample size needed for the study was 2,100. To achieve saturation for the qualitative part of the study, 20 to 40 participants will be randomly sampled for the KIIs using the respondents who participated in the online survey [35].

Study procedure

Self-Administered questionnaire

The study will involve creating, testing, and distributing a self-administered questionnaire (SAQ). All eligible study participants will answer the SAQ on socio-demographic factors such as age, sex, gender, sexual orientation, residence, household income, socioeconomic status, smoking status, family history of mental health, and COVID-19 sickness of immediate family members or friends. The two validated survey tools, Depression, Anxiety, and Stress Scale (DASS-21) and Brief-COPE, will be used for the mental health outcome assessment [3639]. The DASS-21 will measure the negative emotional states of depression, anxiety, and stress [40], while the Brief-COPE will measure the students’ coping strategies [41].

For the exposure assessment of the students to social media and shift to online learning, the total time spent on social media (TSSM) per day will be ascertained by querying the participants to provide an estimated time spent daily on social media during and after their online classes. In addition, students will be asked to report their use of the eight commonly used social media sites identified at the start of the study. These sites include Facebook, Twitter, Instagram, LinkedIn, Pinterest, TikTok, YouTube, and social messaging sites Viber/WhatsApp and Facebook Messenger with response choices coded as "(1) never," "(2) less often," "(3) every few weeks," "(4) a few times a week," and “(5) daily” [4244]. Furthermore, a global frequency score will be calculated by adding the response scores from the eight social media sites. The global frequency score will be used as an additional exposure marker of students to social media [45]. The shift to online learning will be assessed using questions that will determine the participants’ satisfaction with online learning. This assessment is comprised of 8 items in which participants will be asked to respond on a 5-point Likert scale ranging from ‘strongly disagree’ to ‘strongly agree.’

The online survey will be virtually distributed in English using the Qualtrics XM™ platform. Informed consent detailing the purpose, risks, benefits, methods, psychological referrals, and other ethical considerations will be included before the participants are allowed to answer the survey. Before administering the online survey, the SAQ shall undergo pilot testing among twenty (20) college students not involved with the study. It aims to measure total test-taking time, respondent satisfaction, and understandability of questions. The survey shall be edited according to the pilot test participant’s responses. Moreover, according to the Philippines’ Data Privacy Act, all the answers will be accessible and used only for research purposes.

Key informant interviews

The research team shall develop the KII concept note, focusing on the extraneous factors affecting the student’s mental health, behaviors, and coping mechanism. Some salient topics will include current stressors (e.g., personal, academic, social), emotional reactions to these stressors, and how they wish to receive support in response to these stressors. The KII will be facilitated by a certified psychologist/psychiatrist/social scientist and research assistants using various online video conferencing software such as Google Meet, Skype, or Zoom. All the KIIs will be recorded and transcribed for analysis. Furthermore, there will be a debriefing session post-KII to address the psychological needs of the participants. Fig 1 presents the diagrammatic flowchart of the study.

Fig 1. Flow chart of the assessment of mental health status of college students during COVID-19 pandemic.

Fig 1

Data analyses

Quantitative data

Descriptive statistics will be calculated, including the prevalence of mental health outcomes such as depression, anxiety, stress, and coping strategies. In addition, correlation coefficients will be estimated to assess the relations among the different mental health outcomes, covariates, and possible risk factors.

Associations between mental health outcomes and possible risk factors will be estimated using generalized linear models, a standard method for analyzing data in cross-sectional studies. Depending on how rare or common the mental health outcomes are, generalized linear models with either a Poisson distribution and log link function with a robust variance estimator or a Binomial distribution and logit link function will be used to estimate either the adjusted prevalence ratios (PRs) or odds ratios (ORs) with 95% confidence intervals (CIs), respectively [4649]. Separate single-mental health outcome models will be evaluated, and the models will consider the general form:

E[Yi]=n0+n1X1i+n2X2i++nrXri [1]

where Yi will be the mental health outcome (depression, anxiety, stress, and coping strategy) status of subject i and covariates for subject i will be denoted by X1i to Xri as the possible exposure risk factors (i.e., social media use and shift to online learning) and confounding factors (i.e., age, sex, gender, smoking status, family income, etc.). In addition, we will control for the covariates chosen a priori as potentially important predictors of mental health outcomes in all the models.

Several study characteristics as effect modifiers will also be assessed, including sex, gender, sexual orientation, family income, smoking status, family history of mental health, and Covid-19. We will include interaction terms between the dichotomized modifier variable and markers of social media use (total TSSM and global frequency score) and shift to online learning in the models. The significance of the interaction terms will be evaluated using the likelihood ratio test. All the regression analyses will be done in R (http://www.r-project.org). P values ≤ 0.05 will be considered statistically significant.

Qualitative data

After transcribing the interviews, the data transcripts will be analyzed using NVivo 1.4.1 software [50] by three research team members independently using the inductive logic approach in thematic analysis: familiarizing with the data, generating initial codes, searching for themes, reviewing the themes, defining and naming the themes, and producing the report [51]. Data familiarization will consist of reading and re-reading the data while noting initial ideas. Additionally, coding interesting features of the data will follow systematically across the entire dataset while collating data relevant to each code. Moreover, the open coding of the data will be performed to describe the data into concepts and themes, which will be further categorized to identify distinct concepts and themes [52].

The three researchers will discuss the results of their thematic analyses. They will compare and contrast the three analyses in order to come up with a thematic map. The final thematic map of the analysis will be generated after checking if the identified themes work in relation to the extracts and the entire dataset. In addition, the selection of clear, persuasive extract examples that will connect the analysis to the research question and literature will be reviewed before producing a scholarly report of the analysis. Additionally, the themes and sub-themes generated will be assessed and discussed in relevance to the study’s objectives. Furthermore, the gathering and analyzing of the data will continue until saturation is reached. Finally, pseudonyms will be used to present quotes from qualitative data.

Data triangulation

Data triangulation using the two different data sources will be conducted to examine the various aspects of the research and will be compared for convergence. This part of the analysis will require listing all the relevant topics or findings from each component of the study and considering where each method’s results converge, offer complementary information on the same issue, or appear to contradict each other. It is crucial to explicitly look for disagreements between findings from different data collection methods because exploration of any apparent inter-method discrepancy may lead to a better understanding of the research question [53, 54].

Data management plan

The Project Leader will be responsible for overall quality assurance, with research associates and assistants undertaking specific activities to ensure quality control. Quality will be assured through routine monitoring by the Project Leader and periodic cross-checks against the protocols by the research assistants. Transcribed KIIs and the online survey questionnaire will be used for recording data for each participant in the study. The project leader will be responsible for ensuring the accuracy, completeness, legibility, and timeliness of the data captured in all the forms. Data captured from the online survey or KIIs should be consistent, clarified, and corrected. Each participant will have complete source documentation of records. Study staff will prepare appropriate source documents and make them available to the Project Leader upon request for review. In addition, study staff will extract all data collected in the KII notes or survey forms. These data will be secured and kept in a place accessible to the Project Leader. Data entry and cleaning will be conducted, and final data cleaning, data freezing, and data analysis will be performed. Key informant interviews will always involve two researchers. Where appropriate, quality control for the qualitative data collection will be assured through refresher KII training during research design workshops. The Project Leader will check through each transcript for consistency with agreed standards. Where translations are undertaken, the quality will be assured by one other researcher fluent in that language checking against the original recording or notes.

Ethics and dissemination

Ethics approval

The study shall abide by the Principles of the Declaration of Helsinki (2013). It will be conducted along with the Guidelines of the International Conference on Harmonization-Good Clinical Practice (ICH-GCP), E6 (R2), and other ICH-GCP 6 (as amended); National Ethical Guidelines for Health and Health-Related Research (NEGHHRR) of 2017. This protocol has been approved by the University of the Philippines Manila Research Ethics Board (UPMREB 2021-099-01 dated March 25, 2021).

The main concerns for ethics were consent, data privacy, and subject confidentiality. The risks, benefits, and conflicts of interest are discussed in this section from an ethical standpoint.

Recruitment

The participants will be recruited to answer the online SAQ voluntarily. The recruitment of participants for the KIIs will be chosen through stratified random sampling using a list of those who answered the online SAQ; this will minimize the risk of sampling bias. In addition, none of the participants in the study will have prior contact or association with the researchers. Moreover, power dynamics will not be contacted to recruit respondents. The research objectives, methods, risks, benefits, voluntary participation, withdrawal, and respondents’ rights will be discussed with the respondents in the consent form before KII.

Consent

Informed consent will be signified by the potential respondent ticking a box in the online informed consent form and the voluntary participation of the potential respondent to the study after a thorough discussion of the research details. The participant’s consent is voluntary and may be recanted by the participant any time s/he chooses.

Data privacy

All digital data will be stored in a cloud drive accessible only to the researchers. Subject confidentiality will be upheld through the assignment of control numbers and not requiring participants to divulge the name, address, and other identifying factors not necessary for analysis.

Compensation

No monetary compensation will be given to the participants, but several tokens will be raffled to all the participants who answered the online survey and did the KIIs.

Risks

This research will pose risks to data privacy, as discussed and addressed above. In addition, there will be a risk of social exclusion should data leaks arise due to the stigma against mental health. This risk will be mitigated by properly executing the data collection and analysis plan, excluding personal details and tight data privacy measures. Moreover, there is a risk of psychological distress among the participants due to the sensitive information. This risk will be addressed by subjecting the SAQ and the KII guidelines to the project team’s psychiatrist’s approval, ensuring proper communication with the participants. The KII will also be facilitated by registered clinical psychologists/psychiatrists/social scientists to ensure the participants’ appropriate handling; there will be a briefing and debriefing of the participants before and after the KII proper.

Benefits

Participation in this study will entail health education and a voluntary referral to a study-affiliated psychiatrist, discussed in previous sections. Moreover, this would contribute to modifications in targeted mental-health campaigns for the 18–25 age group. Summarized findings and recommendations will be channeled to stakeholders for their perusal.

Dissemination

The results will be actively disseminated through conference presentations, peer-reviewed journals, social media, print and broadcast media, and various stakeholder activities.

Discussion

This study protocol rationalizes the examination of the mental health of the college students in the Philippines during the COVID-19 pandemic as the traditional face-to-face classes transitioned to online and modular classes. The pandemic that started in March 2020 is now stretching for more than a year in which prolonged lockdown brings people to experience social isolation and disruption of everyday lifestyle. There is an urgent need to study the psychosocial aspects, particularly those populations that are vulnerable to mental health instability. In the Philippines, where community quarantine is still being imposed across the country, college students face several challenges amidst this pandemic. The pandemic continues to escalate, which may lead to fear and a spectrum of psychological consequences. Universities and colleges play an essential role in supporting college students in their academic, safety, and social needs. The courses of activities implemented by the different universities and colleges may significantly affect their mental well-being status. Our study is particularly interested in the effect of online classes on college students nationwide during the pandemic. The study will estimate this effect on their mental wellbeing since this abrupt transition can lead to depression, stress, or anxiety for some students due to insufficient time to adjust to the new learning environment. The role of social media is also an important exposure to some college students [55, 56]. Social media exposure to COVID-19 may be considered a contributing factor to college students’ mental well-being, particularly their stress, depression, and anxiety [57, 58]. Despite these known facts, little is known about the effect of transitioning to online learning and social media exposure on the mental health of college students during the COVID-19 pandemic in the Philippines. To our knowledge, this is the first study in the Philippines that will use a mixed-method study design to examine the mental health of college students in the entire country. The online survey is a powerful platform to employ our methods.

Additionally, our study will also utilize a qualitative assessment of the college students, which may give significant insights or findings of the experiences of the college students during these trying times that cannot be captured on our online survey. The thematic findings or narratives from the qualitative part of our study will be triangulated with the quantitative analysis for a more robust synthesis. The results will be used to draw conclusions about the mental health status among college students during the pandemic in the country, which will eventually be used to implement key interventions if deemed necessary. A cross-sectional study design for the online survey is one of our study’s limitations in which contrasts will be mainly between participants at a given point of time. In addition, bias arising from residual or unmeasured confounding factors cannot be ruled out.

The COVID-19 pandemic and its accompanying effects will persistently affect the mental wellbeing of college students. Mental health services must be delivered to combat mental instability. In addition, universities and colleges should create an environment that will foster mental health awareness among Filipino college students. The results of our study will tailor the possible coping strategies to meet the specific needs of college students nationwide, thereby promoting psychological resilience.

Acknowledgments

The researchers would like to extend their gratitude to the executives of the Philippine Red Cross, notably Senator Richard J. Gordon (Chairman), Ms. Elizabeth S. Zavalla (Secretary-General), and Ms. Maria Theresa S. Bongiad (Manager, Red Cross Youth), for making this project a reality. We also would like to thank all Red Cross Youth Chapters in the Philippines for helping in the pre-implementation stage of the project.

Funding Statement

This project is being supported by the American Red Cross through the Philippine Red Cross and Red Cross Youth. The funder will not have a role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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Decision Letter 0

Yann Benetreau

5 Nov 2021

PONE-D-21-17998Assessing the Effect of the COVID-19 Pandemic, Shift to Online Learning, and Social Media Use on Mental Health Among College Students in the Philippines: A Mixed-Method Study ProtocolPLOS ONE

Dear Dr. Baja,

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Dear Author

The manuscript is deemed to be not suitable for accepting for corrections or publications as it never meets the basic quality of an SSCI journal. Please refer to the comments from the reviewers.

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Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Does the manuscript provide a valid rationale for the proposed study, with clearly identified and justified research questions?

The research question outlined is expected to address a valid academic problem or topic and contribute to the base of knowledge in the field.

Reviewer #1: Yes

Reviewer #2: Partly

Reviewer #3: Yes

Reviewer #4: No

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2. Is the protocol technically sound and planned in a manner that will lead to a meaningful outcome and allow testing the stated hypotheses?

The manuscript should describe the methods in sufficient detail to prevent undisclosed flexibility in the experimental procedure or analysis pipeline, including sufficient outcome-neutral conditions (e.g. necessary controls, absence of floor or ceiling effects) to test the proposed hypotheses and a statistical power analysis where applicable. As there may be aspects of the methodology and analysis which can only be refined once the work is undertaken, authors should outline potential assumptions and explicitly describe what aspects of the proposed analyses, if any, are exploratory.

Reviewer #1: Yes

Reviewer #2: Partly

Reviewer #3: Partly

Reviewer #4: Partly

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3. Is the methodology feasible and described in sufficient detail to allow the work to be replicable?

Descriptions of methods and materials in the protocol should be reported in sufficient detail for another researcher to reproduce all experiments and analyses. The protocol should describe the appropriate controls, sample size calculations, and replication needed to ensure that the data are robust and reproducible.

Reviewer #1: Yes

Reviewer #2: No

Reviewer #3: Yes

Reviewer #4: Yes

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4. Have the authors described where all data underlying the findings will be made available when the study is complete?

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Reviewer #1: Yes

Reviewer #2: No

Reviewer #3: No

Reviewer #4: No

**********

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Reviewer #1: Yes

Reviewer #2: No

Reviewer #3: Yes

Reviewer #4: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above and, if applicable, provide comments about issues authors must address before this protocol can be accepted for publication. You may also include additional comments for the author, including concerns about research or publication ethics.

You may also provide optional suggestions and comments to authors that they might find helpful in planning their study.

(Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: This study protocol aims to access the psychological effects among college students (18-25 years old) in the Philippines from the global pandemic, COVID-19, shift to online learning, and social media usage. The objectives of the study protocol address using a mixed-method study design that utilizes the quantitative and qualitative components. For the quantitative analysis, the authors propose sending an online self-administered questionnaire to the eligible participants to answer on socio-demographic factors. Based on the information provided, mental health outcomes will be assessed using two validated survey tools, Depression, Anxiety, and Stress Scale (DASS-21) and Brief-COPE. Additionally, the authors propose estimating the association between mental health outcomes and possible risk factors by using generalized linear models. Key informant interviews, a part of the qualitative component that addresses the stressors affecting the student’s mental health and behavior during the quarantine period. Finally, the authors suggest evaluating the data from quantitative and qualitative sources by using Data triangulation, which analyzes multiple sources of data to enhance the credibility of a research study.

The careful methodology provided in this study protocol will allow other researchers to apply this design to their studies. The validation of this study should provide a roadmap to study the effect of the pandemic on students in other countries.

The design of the study is very detailed for the most part. The authors have provided the necessary information about how the study population would be recruited and provided a justification for the sample size (quantitative data) that would be included in the study by providing relevant power calculations. However, for the qualitative study increasing the number of participants from different areas of the country would improve the quality of the outcome. Also, I would like to ask if any of the authors are Psychologists? If not, please acknowledge the Psychologists if the authors received any help in designing the study.

Also, the inclusion and exclusion criteria of the study population could be explained in more detail. It is not clear if only currently enrolled students would be included in the study. It would be important to justify the exclusion criteria.

Acknowledging similar studies (Copeland et al., 2021 and Fawaz et al., 2021) would help readers with a greater context. I would like to suggest the authors to cite the peer-reviewed version of the article titled “Barriers to online learning in the time of COVID-19: A national survey of medical students in the Philippines”. Also, I would like to ask the authors to change the references according to the journal requirements and have a uniform style.

Reviewer #2: Thank you for the opportunity to review the study protocol. The protocol is for a mixed-methods study looking at the impact of COVID19 and the subsequent shift to quarantine (stay at home), the implementation of online learning formats, and social media use on college students mental health. The study will provide insight into factors impacting mental health of college students. There are some issues with the study protocol that should be addressed.

Introduction

Paragraph 2.

• If you refer to SARS-CoV-2 as COVID-19, please include swine flu when referring to H1N1.

Paragraph 3.

• It is not clear which pandemic the authors are referring to.

• Include reference examples for the first sentence. P

• rovide examples of how infection and death have "adversely affected" mental health.

• How many people responded to the survey measuring the psychological effects of COVID19 in the Philippines?

Paragraph 4.

• Provide references for the first three sentences.

• Provide details of the studies you reference.

• Final sentence is conflating being infected by COVID19 and suffering from mood and substance disorders - please clarify exactly what is meant.

Paragraph 5.

• University students are not generally accepted as a vulnerable population. Please provide a reference that supports this statement.

• Second sentence - provide the references for the multiple studies.

• Are Chinese university students similar to Filipino college students? Surely there are other studies from other countries that can be included here. Or is the social, cultural, and political situation similar between the Philippines and China?

Paragraph 6.

• Second sentence is not clear. Do you mean that academic performance is associated with student mental health? If so, just say that.

• What is "this" in the sentence: "Online learning poses multiple challenges to this".

• Provide an example of "Students’ various social support systems" that have to adapt.

• In this sentence: "These challenges are alarming because social support has been noted as a critical aspect of mediating acute distress disorder" it's not clear if the statement refers to students or some other population.

• References are needed for the following sentences: "In addition, loneliness has been rising for the past six years amongst this vulnerable demographic. One study showed that being a student is a risk factor for loneliness, exacerbated during the pandemic." Furthermore, please provide greater clarity around the population being discussed.

• The following sentence does not follow the logic from the preceding sentences: "Therefore, online learning must be perceived as an inclusive community and a safe space for peer-to-peer interactions (18)."

Paragraph 7.

• The following sentence needs a reference: "One research recommends clear and focused design elements on accommodating students living with depression."

• The argument presented in this paragraph is not clear.

Paragraph 8

• The first three sentences need references.

• The argument for examining the effect of social media on students mental health is weak and is only presented in the second to last paragraph.

Paragraph 9

• There is no inclusion of social media in this paragraph.

• This paragraph should present a strong argument for the study, including all the factors that are to be included in the study.

Materials and methods

Study aim –

• Aims 1 and 2 are very similar. Aim 1 suggests you are going to describe the sample according to the categories of mental health. This is quite unusual and makes me think that maybe 'stratified is not the correct word for this aim. Perhaps what is meant is that the study aims to describe the characteristics of the sample population including mental health (e.g., depression, anxiety, stress)

• Aim 2 it is not clear if the determination of prevalence is before or post, the subsequent shift to online learning. Please clarify.

• Aim 3. It is not clear what the aim is. Please simplify. It might require breaking this one aim up into 2 or 3.

• Aim 4 Is similar to the last aspect of aim 3.

• Furthermore, the phrase "during the COVID-19 pandemic, quarantine, and subsequent shift to online learning." Is confusing - COVID 19 is current, it's not clear whether all or some of the students are in quarantine, and presumably, they have shifted to online learning (past). Please clarify the state in which the study will be conducted.

Design,

• When is the quarantine period. Please provide dates?

• Population RCY seems like a great way to recruit participants. However, this population may not reflect all college students as RCY are volunteers. Students who volunteer may have different values and attitudes towards mental health, and social justice and adapting to change. The authors must account for this in their study and ensure there are no differences between their RCY participants and the non-member RCY participants on critical factors (e.g., mental health etc).

• It is not clear how random sampling for the KII will be achieved. The reported sampling method reads more like stratified sampling.

Inclusion exclusion criteria

• It is not clear why those who identify as non-binary genders are not included. Why is gender an inclusion/ exclusion criterion?

• The sample size calculation - how was the number of KIIs determined? how data saturation will be determined

Study procedure

• It's not clear how the demographic factors will be collected.

• Variables are not clear (e.g., sickness of loved ones) - do you mean family members? friends? pets? do you mean chronic illness or acute illness?

• What other factors that could affect mental health are you going to measure?

• This statement is not accurate: "The DASS-21 will measure the prevalence of depression, anxiety, and stress-related issues affecting daily life (28)" please correct to more accurately describe the DASS.

• It is not clear how this variable will be measured: "the total time spent on social media (TSSM) per day will be ascertained by querying the participants to provide an estimated time spent daily on social media during and after their online classes." is it the total time in one day, or only during and after class. Why not all day? or why is it only during and after of interest? The assumption is that they will increase their use of social media, but what if their use of social media is the same or less than before the shift to online learning?

• Regarding the KII, it may be country-specific, but it's not clear how social scientists and research assistants facilitation of interviews will be the same quality as psychologists and psychiatrists. How will the difference in skills in interviewing be overcome?

• Will the results of the survey be used to develop interview questions?

Data Analysis

• Given that all the variables are known, the quantitative analysis could be clearer with examples of what the authors mean by 'covariate' and 'possible risk factors.

• Will the analyses be explorational? the literature review implies that some hypotheses may be developed. If so, the analyses should be designed to test those hypotheses.

• How will p-values be adjusted to account for the multiple analyse?

Qualitative data

• Will the themes be developed independently by researchers? how many researchers will be involved in the coding? It is not clear from the description how will triangulation be established. Will multiple authors do the coding of the interview transcripts - independently? Will the results of the survey be used to inform the coding of the interviews?

Ethics and dissemination

• It is still not clear how random sampling will be achieved by the authors for recruitment for KII.

• What will the researchers do if a participants response to the DASS indicates they have clinical levels of Depression, Anxiety or Stress?

Discussion

• References are needed throughout the discussion. For example, "The role of social media is also an important exposure to some college students. Social media exposure to COVID-19 may be considered a contributing factor to college students’ mental well-being, particularly their stress, depression, and anxiety."

Reviewer #3: The title of the protocol is timely and well presented. However, I don't agree on publishing protocols for cross-sectional studies. However, the results of this protocol are expected to add great value for public health.

Reviewer #4: This is just a proposal stage. Some part of the methods section is not well defined. Without any results, it is not suitable for a scientific publication yet.

**********

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Reviewer #1: No

Reviewer #2: No

Reviewer #3: No

Reviewer #4: No

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.]

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PLoS One. 2022 May 3;17(5):e0267555. doi: 10.1371/journal.pone.0267555.r002

Author response to Decision Letter 0


16 Jan 2022

Reviewer No. 1:

This study protocol aims to assess the psychological effects among college students (18-25 years old) in the Philippines from the global pandemic, COVID-19, shift to online learning, and social media usage. The objectives of the study protocol address using a mixed-method study design that utilizes the quantitative and qualitative components. For the quantitative analysis, the authors propose sending an online self-administered questionnaire to the eligible participants to answer on socio-demographic factors. Based on the information provided, mental health outcomes will be assessed using two validated survey tools, Depression, Anxiety, and Stress Scale (DASS-21) and Brief-COPE. Additionally, the authors propose estimating the association between mental health outcomes and possible risk factors by using generalized linear models. Key informant interviews, a part of the qualitative component that addresses the stressors affecting the student’s mental health and behavior during the quarantine period. Finally, the authors suggest evaluating the data from quantitative and qualitative sources by using data triangulation, which analyzes multiple sources of data to enhance the credibility of a research study.

The careful methodology provided in this study protocol will allow other researchers to apply this design to their studies. The validation of this study should provide a roadmap to study the effect of the pandemic on students in other countries.

The design of the study is very detailed for the most part. The authors have provided the necessary information about how the study population would be recruited and provided a justification for the sample size (quantitative data) that would be included in the study by providing relevant power calculations. However, for the qualitative study, increasing the number of participants from different areas of the country would improve the quality of the outcome. Also, I would like to ask if any of the authors are Psychologists? If not, please acknowledge the Psychologists if the authors received any help in designing the study.

Response: One of the authors is a senior consultant psychiatrist, Dr. Josefina T. Ly-Uson. She helped in the design of the study.

Also, the inclusion and exclusion criteria of the study population could be explained in more detail. It is not clear if only currently enrolled students would be included in the study. It would be important to justify the exclusion criteria.

Response: The inclusion criteria now included “currently enrolled college students.” The exclusion criteria included those students in graduate-level programs and those whose current curricula involve going on duty. We purposely chose to exclude those students because they have a different set of schooling conditions compared to the rest of the regular college students.

Acknowledging similar studies (Copeland et al., 2021 and Fawaz et al., 2021) would help readers with a greater context. I would like to suggest the authors cite the peer-reviewed version of the article titled “Barriers to online learning in the time of COVID-19: A national survey of medical students in the Philippines”. Also, I would like to ask the authors to change the references according to the journal requirements and have a uniform style.

Response: Thank you for the suggestion. This comment is noted, and revisions have been made.

Reviewer No. 2

Thank you for the opportunity to review the study protocol. The protocol is for a mixed-methods study looking at the impact of COVID19 and the subsequent shift to quarantine (stay at home), the implementation of online learning formats, and social media use on college students’ mental health. The study will provide insight into factors impacting mental health of college students. There are some issues with the study protocol that should be addressed.

Introduction

Paragraph 2.

• If you refer to SARS-CoV-2 as COVID-19, please include swine flu when referring to H1N1.

Response: This is noted, and revisions have been made.

Paragraph 3.

• It is not clear which pandemic the authors are referring to.

Response: This is noted, and revisions have been made.

• Include reference examples for the first sentence.

Response: This is noted, and revisions have been made.

• Provide examples of how infection and death have "adversely affected" mental health.

Response: This is noted, and revisions have been made.

• How many people responded to the survey measuring the psychological effects of COVID19 in the Philippines?

Response: This is noted, and revisions have been made.

Paragraph 4.

• Provide references for the first three sentences.

Response: This is noted, and revisions have been made.

• Provide details of the studies you reference.

Response: This is noted, and revisions have been made.

• Final sentence is conflating being infected by COVID19 and suffering from mood and substance disorders - please clarify exactly what is meant.

Response: This is noted, and revisions have been made.

Paragraph 5.

• University students are not generally accepted as a vulnerable population. Please provide a reference that supports this statement.

Response: This is noted, and the statement was deleted.

• Second sentence - provide the references for the multiple studies.

Response: This is noted, and revisions have been made.

• Are Chinese university students similar to Filipino college students? Surely there are other studies from other countries that can be included here. Or is the social, cultural, and political situation similar between the Philippines and China?

Response: This is noted, and revisions have been made. We cited prevalence rates from three different countries (USA, Malaysia, and China).

Paragraph 6.

• Second sentence is not clear. Do you mean that academic performance is associated with student mental health? If so, just say that.

Response: This is noted, and revisions have been made.

• What is "this" in the sentence: "Online learning poses multiple challenges to this".

Response: This is noted, and revisions have been made.

• Provide an example of "Students’ various social support systems" that have to adapt.

Response: This is noted and revisions have been made.

• In this sentence: "These challenges are alarming because social support has been noted as a critical aspect of mediating acute distress disorder" it's not clear if the statement refers to students or some other population.

Response: This is noted, and revisions have been made.

• References are needed for the following sentences: "In addition, loneliness has been rising for the past six years amongst this vulnerable demographic. One study showed that being a student is a risk factor for loneliness, exacerbated during the pandemic." Furthermore, please provide greater clarity around the population being discussed.

Response: This is noted, and revisions have been made.

• The following sentence does not follow the logic from the preceding sentences: "Therefore, online learning must be perceived as an inclusive community and a safe space for peer-to-peer interactions (18)."

Response: This is noted, and revisions have been made.

Paragraph 7.

• The following sentence needs a reference: "One research recommends clear and focused design elements on accommodating students living with depression."

Response: This is noted, and revisions have been made.

• The argument presented in this paragraph is not clear.

Response: This is noted, and revisions have been made.

Paragraph 8

• The first three sentences need references.

Response: This is noted, and references have been added.

• The argument for examining the effect of social media on students' mental health is weak and is only presented in the second to last paragraph.

Response: This is noted, and revisions have been made.

Paragraph 9

• There is no inclusion of social media in this paragraph.

Response: This is noted, and revisions have been made.

• This paragraph should present a strong argument for the study, including all the factors that are to be included in the study.

Response: This is noted, and revisions have been made.

Materials and methods

Study aim

• Aims 1 and 2 are very similar. Aim 1 suggests you are going to describe the sample according to the categories of mental health. This is quite unusual and makes me think that maybe 'stratified' is not the correct word for this aim. Perhaps what is meant is that the study aims to describe the characteristics of the sample population including mental health (e.g., depression, anxiety, stress)

Response: This is noted. We replaced the word stratified with categorized. Aims 1 and 2 are not similar. The first aim will present the characteristics of the population, while the second aim will present the prevalence and risk factors.

• Aim 2 it is not clear if the determination of prevalence is before or post, the subsequent shift to online learning. Please clarify.

Response: Aim 2 will determine the prevalence after the subsequent shift to online learning. We will not determine the pre-shift to online learning prevalence because there was an abrupt transition to online learning in the Philippines, which limits our time frame to collect data before the shift to online learning.

• Aim 3. It is not clear what the aim is. Please simplify. It might require breaking this one aim up into 2 or 3.

Response: Aim 3 was split into 2 aims. The first aim will be looking at the effect of social media use on markers of mental health (depression, anxiety, stress, and coping strategies towards stress). At the same time, the second aim will look at the effect of online learning shift on markers of mental health (depression, anxiety, stress, and coping strategies towards stress).

• Aim 4 Is similar to the last aspect of aim 3.

Response: Aim 4 is very different from Aim 3 because Aim 4 is the qualitative part of the study which will use key informant interviews to explore facilitators or stressors that modified the mental health status of the participants while Aim 3 is the quantitative part.

• Furthermore, the phrase "during the COVID-19 pandemic, quarantine, and subsequent shift to online learning." Is confusing - COVID 19 is current, it's not clear whether all or some of the students are in quarantine, and presumably, they have shifted to online learning (past). Please clarify the state in which the study will be conducted.

Response: Currently, the Philippines is still in quarantine due to COVID-19 and all classes made a shift to online learning and no face-to-face classes are allowed.

Design

• When is the quarantine period? Please provide dates?

Response: Currently, the Philippines is still in quarantine. We opted to use April to November 2021 as the study period.

• Population RCY seems like a great way to recruit participants. However, this population may not reflect all college students as RCY are volunteers. Students who volunteer may have different values and attitudes towards mental health, and social justice and adapting to change. The authors must account for this in their study and ensure there are no differences between their RCY participants and the non-member RCY participants on critical factors (e.g., mental health etc).

Response: RCY is connected with the majority of the universities and colleges in the Philippines. RCY will spearhead the distribution of the questionnaires to universities and colleges in the Philippines. Therefore, non-RCY volunteers are also encouraged and recruited to participate in the study. We will account for the differences between RCY and non-RCY volunteers by adding an indicator variable in our statistical models.

• It is not clear how random sampling for the KII will be achieved. The reported sampling method reads more like stratified sampling.

Response: Yes, it is a stratified random sampling using 4 major regions of the country. We have revised the section.

Inclusion exclusion criteria

• It is not clear why those who identify as non-binary genders are not included. Why is gender an inclusion/ exclusion criterion?

Response: Gender is not an exclusion/inclusion criterion. Revisions have been made.

• The sample size calculation - how was the number of KIIs determined? how data saturation will be determined

Response: The saturation will be achieved once almost all of the interview transcripts have been generating no new information. We added the reference Hagaman and Wutich as basis for the KII sample size.

Study procedure

• It's not clear how the demographic factors will be collected.

Response: Demographic factors will be collected using the SAQ we developed.

• Variables are not clear (e.g., sickness of loved ones) - do you mean family members? friends? pets? do you mean chronic illness or acute illness?

Response: This is noted and revisions have been made.

• What other factors that could affect mental health are you going to measure?

Response: We deleted “other factors that could affect mental health”.

• This statement is not accurate: "The DASS-21 will measure the prevalence of depression, anxiety, and stress-related issues affecting daily life (28)" please correct to more accurately describe the DASS.

Response: This is noted and revisions have been made.

• It is not clear how this variable will be measured: "the total time spent on social media (TSSM) per day will be ascertained by querying the participants to provide an estimated time spent daily on social media during and after their online classes." is it the total time in one day, or only during and after class. Why not all day? or why is it only during and after interest? The assumption is that they will increase their use of social media, but what if their use of social media is the same or less than before the shift to online learning?

Response: We will measure the social media during and outside online class hours. TSSM will measure the total time spent per day on social media. We will not account for the TSSM before shifting to online learning. Our objective is to measure their TSSM during and outside of class hours that is happening in a quarantine period.

• Regarding the KII, it may be country-specific, but it's not clear how social scientists and research assistants facilitation of interviews will be the same quality as psychologists and psychiatrists. How will the difference in skills in interviewing be overcome?

Response: Dr. Uson, our board-certified psychiatrist, trained the research assistants to facilitate KIIs. She will also be present during the KII. In the Philippines, training of the research assistants to facilitate KII is done in order for them to learn and be adequately trained for future research. Research assistants may someday be the research primary investigators.

• Will the results of the survey be used to develop interview questions?

Response: The results of the survey will not be used to develop interview questions. But we will use the answers of the KII participants in the survey as a guide during the interviews of the KII participants.

Data Analysis

• Given that all the variables are known, the quantitative analysis could be clearer with examples of what the authors mean by 'covariate' and 'possible risk factors.

Response: Yes, all the possible variables that will be used in the data analysis have been identified a priori as confounding factor covariates and risk factors.

• Will the analyses be explorational? The literature review implies that some hypotheses may be developed. If so, the analyses should be designed to test those hypotheses.

Response: The analysis will not be explorational. Important possible risk factors (exposures) and covariates (confounding factors) were chosen a priori and will be used for the multivariable generalized linear models.

• How will p-values be adjusted to account for the multiple analyses?

Response: We will not use a correction method to adjust the p-values, since our statistical analyses will be not that many to warrant an adjustment. Possible adjustments of p-values are for microarray datasets to correct the occurrence of false positives in the multiple analyses.

Qualitative data

• Will the themes be developed independently by researchers? How many researchers will be involved in the coding? It is not clear from the description how triangulation will be established. Will multiple authors do the coding of the interview transcripts - independently? Will the results of the survey be used to inform the coding of the interviews?

Response: This is noted, and revisions have been made. The description of the triangulation was described in the “data triangulation” section and references have been updated to include the “comparison of datasets for convergence”. As mentioned earlier, the results of the survey will not be used to develop interview questions. But we will use their answers in the survey as a guide during the interview.

Ethics and dissemination

• It is still not clear how random sampling will be achieved by the authors for recruitment for KII.

Response: From the pool of participants per area, using a software, we will randomly choose prospective KII participants and contact them if they are willing to participate. If they opted not to participate, we will randomly choose participants again from the pool of respondents per area.

• What will the researchers do if a participant's response to the DASS indicates they have clinical levels of Depression, Anxiety or Stress?

Response: It is our ethical duty to assist the participants if they have been screened to have high clinical levels of depression, anxiety, or stress. We will refer them to a tertiary government hospital for further evaluation, or treatment if needed.

Discussion

• References are needed throughout the discussion. For example, "The role of social media is also an important exposure to some college students. Social media exposure to COVID-19 may be considered a contributing factor to college students’ mental well-being, particularly their stress, depression, and anxiety."

Response: This is noted, and references have been added.

Attachment

Submitted filename: Response to Reviewers.docx

Decision Letter 1

Jianhong Zhou

15 Feb 2022

PONE-D-21-17998R1Assessing the Effect of the COVID-19 Pandemic, Shift to Online Learning, and Social Media Use on the Mental Health of College Students in the Philippines: A Mixed-Method Study ProtocolPLOS ONE

Dear Dr. Baja,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

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Jianhong Zhou

Associate Editor

PLOS ONE

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Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Does the manuscript provide a valid rationale for the proposed study, with clearly identified and justified research questions?

The research question outlined is expected to address a valid academic problem or topic and contribute to the base of knowledge in the field.

Reviewer #1: Yes

Reviewer #2: Yes

Reviewer #4: Partly

**********

2. Is the protocol technically sound and planned in a manner that will lead to a meaningful outcome and allow testing the stated hypotheses?

The manuscript should describe the methods in sufficient detail to prevent undisclosed flexibility in the experimental procedure or analysis pipeline, including sufficient outcome-neutral conditions (e.g. necessary controls, absence of floor or ceiling effects) to test the proposed hypotheses and a statistical power analysis where applicable. As there may be aspects of the methodology and analysis which can only be refined once the work is undertaken, authors should outline potential assumptions and explicitly describe what aspects of the proposed analyses, if any, are exploratory.

Reviewer #1: Yes

Reviewer #2: Yes

Reviewer #4: Partly

**********

3. Is the methodology feasible and described in sufficient detail to allow the work to be replicable?

Descriptions of methods and materials in the protocol should be reported in sufficient detail for another researcher to reproduce all experiments and analyses. The protocol should describe the appropriate controls, sample size calculations, and replication needed to ensure that the data are robust and reproducible.

Reviewer #1: Yes

Reviewer #2: Yes

Reviewer #4: Yes

**********

4. Have the authors described where all data underlying the findings will be made available when the study is complete?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception, at the time of publication. The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: Yes

Reviewer #4: No

**********

5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: Yes

Reviewer #4: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above and, if applicable, provide comments about issues authors must address before this protocol can be accepted for publication. You may also include additional comments for the author, including concerns about research or publication ethics.

You may also provide optional suggestions and comments to authors that they might find helpful in planning their study.

(Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: Appreciate the authors' efforts, they addressed all the concerns adequately.

However, I suggest authors to cite the peer-reviewed version of the article instead of medRxiv.

Good luck with your publication.

Reviewer #2: Thank you for the opportunity to review this protocol. The authors have made considerable changes to the protocol in response to reviewer comments. There are just a couple of minor points to be addressed.

Paragraph 6 – please include the years that these studies were conducted. Also, as these studies are cross-sectional, it is not entirely accurate to say that there is a growing prevalence (which you could do if there were similar studies conducted years apart on the same population, or a longitudinal study. But these are separate populations and the years have not been presented to the reader). Perhaps just delete ‘growing’

Qualitative data – paragraph 1- The description of the qualitative data is missing some information. For example, at what point will the three qualitative analysts discuss the themes? Will the three analysts do all of the transcripts or will they do a sample to establish consistency before dividing the transcripts? Please confirm whether inductive or deductive logic to the coding approach.

Reviewer #4: -The study is proposed to explore the effect of social media use, online learning upon mental health. It is hard to differentiate wither the effect is due to social media or online learning. (aim 3 and aim 4).

- The study participants (inclusion criteria) also include out-of-school youth as they are including all RCY who agreed.

-

**********

7. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Reviewer #2: No

Reviewer #4: No

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PLoS One. 2022 May 3;17(5):e0267555. doi: 10.1371/journal.pone.0267555.r004

Author response to Decision Letter 1


23 Feb 2022

RESPONSE TO REVIEWERS

PONE-D-21-17998: Assessing the Effect of the COVID-19 Pandemic, Shift to Online Learning, and Social Media Use on Mental Health Among College Students in the Philippines: A Mixed-Method Study Protocol

Reviewer #1: Appreciate the authors' efforts, they addressed all the concerns adequately. However, I suggest authors cite the peer-reviewed version of the article instead of medRxiv.

Good luck with your publication.

Response: We have removed the medRxiv references.

Reviewer #2: Thank you for the opportunity to review this protocol. The authors have made considerable changes to the protocol in response to reviewer comments. There are just a couple of minor points to be addressed.

Paragraph 6 – please include the years that these studies were conducted. Also, as these studies are cross-sectional, it is not entirely accurate to say that there is a growing prevalence (which you could do if there were similar studies conducted years apart on the same population, or a longitudinal study. But these are separate populations and the years have not been presented to the reader). Perhaps just delete ‘growing’

Response: We have deleted the word “growing.”

Qualitative data – paragraph 1- The description of the qualitative data is missing some information. For example, at what point will the three qualitative analysts discuss the themes? Will the three analysts do all of the transcripts or will they do a sample to establish consistency before dividing the transcripts? Please confirm whether inductive or deductive logic to the coding approach.

Response: The qualitative data description was added with information regarding the discussion of thematic analysis of the three researchers. To ensure consistency, KII training, including transcription and quality assurance, will be done with the research team members as detailed in the Data Management Plan Section. Moreover, an inductive logic approach to coding will be conducted. All of these are reflected in the revised manuscript.

Reviewer #4: -The study is proposed to explore the effect of social media use, online learning on mental health. It is hard to differentiate whether the effect is due to social media or online learning. (Aim 3 and Aim 4).

Response: Generalized linear model using Poisson regression will be done to independently analyze the effect of social media usage or online learning on the participants' mental health. Thus, social media usage and online learning will be treated as two exposures independently.

- The study participants (inclusion criteria) also include out-of-school youth as they are including all RCY who agreed.

Response: We have revised the inclusion and exclusion criteria. “Out-of-school youth” classification is now included in the exclusion criteria. Moreover, current enrollment in a university is part of the inclusion criteria.

Attachment

Submitted filename: Response to Reviewers_Round 2_Plos One 22022022.docx

Decision Letter 2

Elisa Panada

12 Apr 2022

Assessing the Effect of the COVID-19 Pandemic, Shift to Online Learning, and Social Media Use on the Mental Health of College Students in the Philippines: A Mixed-Method Study Protocol

PONE-D-21-17998R2

Dear Dr. Baja,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

An invoice for payment will follow shortly after the formal acceptance. To ensure an efficient process, please log into Editorial Manager at http://www.editorialmanager.com/pone/, click the 'Update My Information' link at the top of the page, and double check that your user information is up-to-date. If you have any billing related questions, please contact our Author Billing department directly at authorbilling@plos.org.

If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org.

Kind regards,

Elisa Panada

Staff Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Does the manuscript provide a valid rationale for the proposed study, with clearly identified and justified research questions?

The research question outlined is expected to address a valid academic problem or topic and contribute to the base of knowledge in the field.

Reviewer #1: Yes

Reviewer #2: Yes

**********

2. Is the protocol technically sound and planned in a manner that will lead to a meaningful outcome and allow testing the stated hypotheses?

The manuscript should describe the methods in sufficient detail to prevent undisclosed flexibility in the experimental procedure or analysis pipeline, including sufficient outcome-neutral conditions (e.g. necessary controls, absence of floor or ceiling effects) to test the proposed hypotheses and a statistical power analysis where applicable. As there may be aspects of the methodology and analysis which can only be refined once the work is undertaken, authors should outline potential assumptions and explicitly describe what aspects of the proposed analyses, if any, are exploratory.

Reviewer #1: Yes

Reviewer #2: Yes

**********

3. Is the methodology feasible and described in sufficient detail to allow the work to be replicable?

Descriptions of methods and materials in the protocol should be reported in sufficient detail for another researcher to reproduce all experiments and analyses. The protocol should describe the appropriate controls, sample size calculations, and replication needed to ensure that the data are robust and reproducible.

Reviewer #1: Yes

Reviewer #2: Yes

**********

4. Have the authors described where all data underlying the findings will be made available when the study is complete?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception, at the time of publication. The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: Yes

**********

5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above and, if applicable, provide comments about issues authors must address before this protocol can be accepted for publication. You may also include additional comments for the author, including concerns about research or publication ethics.

You may also provide optional suggestions and comments to authors that they might find helpful in planning their study.

(Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: I am satisfied with the revisions that were made to the manuscript. I endorse this manuscript for publication.

Reviewer #2: The manuscript provides a valid rationale for the proposed study and the study is technically sound. The methodology is feasible and described in detail.

**********

7. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Reviewer #2: No

Acceptance letter

Elisa Panada

21 Apr 2022

PONE-D-21-17998R2

Assessing the Effect of the COVID-19 Pandemic, Shift to Online Learning, and Social Media Use on the Mental Health of College Students in the Philippines: A Mixed-Method Study Protocol

Dear Dr. Baja:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

If we can help with anything else, please email us at plosone@plos.org.

Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr Elisa Panada

%CORR_ED_EDITOR_ROLE%

PLOS ONE

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    Submitted filename: Response to Reviewers_Round 2_Plos One 22022022.docx


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