. 2022 Mar 17;23(6):e13441. doi: 10.1111/obr.13441

TABLE 5.

Quality assessments of the qualitative studies included in the systematic review researching the influence of unhealthy food and beverage marketing through social media and advergaming on diet‐related outcomes in children ‐ CASP domains

Author (date)	Section A	Section B	Section C
Coates (2020) ⁸³	This study clearly states its aims, for which a qualitative methodology is appropriate, as the research focuses on attitudes and understandings of influencer marketing and its behavioral effects. The research design, recruitment strategy and data collection methods were appropriate for this study (population). There was no prior relationship between the participants and the researcher, rapport was built before starting the main part of the research. Also, the children were assured there were no right or wrong answers.	The study was approved by the University of Liverpool Institute of Psychology, Health and Society Research Ethics Committee. No other ethical issues occurred. The thematic analysis was sufficiently rigorous. The transcripts were checked for mistakes and repeatedly read for familiarization. A second researcher provided feedback on the initial codebook and themes but did not individually code, which decreases credibility. The findings were clearly stated per theme and substantiated with quotes, which also increases credibility.	The results section states that this research provides valuable insight into the effects of online HFSS product marketing towards children. This is a short discussion section, which does not comprise the value of the study.
Thaichon (2016) ⁸⁴	The aim of this research is clearly stated. A qualitative interview design is appropriate for investigating the impact of online advertising via social network sites on children's intention to consume unhealthy food. The recruitment strategy is unclear. The authors don't mention the relationship between the children and the researcher.	The article does not mention any ethical considerations that have been taken into account. The findings are clearly stated through the themes that emerged from the interviews. Many quotes are provided to substantiate the findings, which improves credibility. The data analysis method was unclear, as the authors did not describe which author conducted the analysis. This decreases the study's credibility and dependability.	This study's findings have significant implications for policy makers and practitioners.

Author (date)

Section A

Section B

Section C

Coates (2020) ⁸³

This study clearly states its aims, for which a qualitative methodology is appropriate, as the research focuses on attitudes and understandings of influencer marketing and its behavioral effects. The research design, recruitment strategy and data collection methods were appropriate for this study (population). There was no prior relationship between the participants and the researcher, rapport was built before starting the main part of the research. Also, the children were assured there were no right or wrong answers.

The study was approved by the University of Liverpool Institute of Psychology, Health and Society Research Ethics Committee. No other ethical issues occurred.

The thematic analysis was sufficiently rigorous. The transcripts were checked for mistakes and repeatedly read for familiarization. A second researcher provided feedback on the initial codebook and themes but did not individually code, which decreases credibility.

The findings were clearly stated per theme and substantiated with quotes, which also increases credibility.

The results section states that this research provides valuable insight into the effects of online HFSS product marketing towards children. This is a short discussion section, which does not comprise the value of the study.

Thaichon (2016) ⁸⁴

The aim of this research is clearly stated. A qualitative interview design is appropriate for investigating the impact of online advertising via social network sites on children's intention to consume unhealthy food. The recruitment strategy is unclear. The authors don't mention the relationship between the children and the researcher.

The article does not mention any ethical considerations that have been taken into account.

The findings are clearly stated through the themes that emerged from the interviews. Many quotes are provided to substantiate the findings, which improves credibility. The data analysis method was unclear, as the authors did not describe which author conducted the analysis. This decreases the study's credibility and dependability.

This study's findings have significant implications for policy makers and practitioners.