Table 2.
Variables and factors description.
| Variable group name | Construct | Variable name | Routing | Description | Values | Derived variables/scales |
|---|---|---|---|---|---|---|
| Sociodemo- graphics |
school SES | W#_school_SES_PL - SES_IT | School SES | Categories 1–3 | ||
| age | W#_AGE1a, _AGE1b, _Age_year | Year and month of birth, computed overall age | ||||
| gender | W#_GENDER, _other, _binary | Gender | Categories 0–2; 0–1 | |||
| SES | W#_SES | Financial situation | Categories 1–5 | |||
| ethnicity | W#_ETHN_1_EE – W3_PL_ETHN_other | What language(s) do you speak at home most of the time? Select all, which applies. | A prepared list of local languages including the option “other” (0 – no; 1 – yes) | |||
| Network data | own nickname | W#_NICK | Assigned made-up name (anonymized) | open question | ||
| standard ego-network name generator questions | W#_NET1a – e_FI | Made-up names for friend 1 - 5 (anonymized) | open question | |||
| standard ego-network name generator questions | W#_NET2a_rt – 5e_rt_FI | If W#_NET1a – e_FI answered. | Frequency of spending time with friend 1 – 5 | Scales 1–7 and 1–5 | ||
| Cognitive wellbeing | school performance | W#_COG | School performance during past year | Scale 1–5 | ||
| Physical wellbeing | physical health | W#_PHY1 | Physical health during past year | Scale 1–5 | ||
| physical fitness | W#_PHY2 | Frequency of physical activities during past month | Scale 1–4 | |||
| Social wellbeing | friend support | W#_FRIEND1a - c | Measurement of social wellbeing through friend support | Scale 1–4 | W#_friends (scale 1–4) | |
| family support | W#_FAM1a - c | Measurement of social wellbeing through family support | Scale 1–4 | W#_family (scale 1–4) | ||
| class environment | W#_CLASS1 | Feelings about own class | Scale 1–4 | |||
| Psychological wellbeing | life satisfaction | W#_SATI1a - f | Measurement of psychological wellbeing through life satisfaction (positive and negative dimensions) | Scale 1–4 | W#_sati_pos (scale 1–4); W#_sati_neg (scale 1–4) | |
| self-efficacy | W#_EFFI1a - d | Measurement of psychological wellbeing through self-efficacy | Scale 1–4 | W#_effi (scale 1–4) | ||
| Individual character- istics |
perceived discrimination | W#_DISCR | Frequency of experienced own perceived discrimination during past year | Scale 1–6 | ||
| sensation seeking | W#_SENS1a - d | Measurement of sensation seeking | Scale 1–5 | W#_sensa (scale 1–5) | ||
| Parental mediation | restrictive mediation | W#_MED1a - c | Measurement of restrictive parental mediation of internet use | Scale 1–5 | W#_restrict (scale 1–5) | |
| enabling mediation | W#_MED2a - d | Measurement of enabling parental mediation of internet use | Scale 1–5 | W#_enabling (scale 1–5) | ||
| monitoring | W#_MED3a | Parent or carer checks/controls what you do on the internet | Scale 1–5 | |||
| Digital literacy | technical and operational | W#_SKILL1a - f | Technical and operation dimension of digital skills | Scale 0–5 | W#_skill_tech_pro (scale 0–1) | |
| programming | W#_SKILL1g | Programming item | Scale 0–5 | W#_Skill_progr (categories 0 and 1) | ||
| information navigation and processing | W#_SKILL2a - f | Information navigation and processing dimension of digital skills | Scale 0–5 | W#_skill_inf_pro (scale 0–1); W#_lit_inf_pro (scale 0–1) | ||
| communication and interaction | W#_SKILL3a - f | Communications and interaction dimension of digital skills | Scale 0–5 | W#_skill_comm_pro (scale 0–1); W#_lit_comm_pro (scale 0–1) | ||
| content creation and production | W#_SKILL4a - f | Content creation and production dimension of digital skills | Scale 0–5 | W#_skill_cont_pro (scale 0–1); W#_lit_cont_pro (scale 0–1) | ||
| knowledge items | W#_SKILL5a - f | Knowledge items for digital skills | Categories 0–3 | W#_kninf (categories 0–2); W#_kncomm (categories 0–2); W#_kncont (categories 0–2); W#_skill_know_pro (scale 0–1) | ||
| overall skill level | W#_SKILL1a - 4f | Overall skill level (all dimensions of digital skills) | Scale 0–1 | W#_skill_overall_pro (scale 0–1) | ||
| overall digital literacy | W#_SKILL1a - 5f | Overall digital literacy level (all dimensions of digital skills ad digital knowledge) | Scale 0–1 | W#_litl_know_pro (scale 0–1) | ||
| Internet use | time online | W#_INT1 | Frequency of spending time online | Scale 1–9 | ||
| devices | W#_INT2a - c | Frequency of internet use on devices | Scale 1–7 | |||
| access at home | W#_INT3 | Access to the internet | Categories 0 and 1 | |||
| covid-19 | W#_INT4 | Inaccessibility of internet during the past | Scale 1–5 | |||
| Online activities | online learning | W#_ACT1a - c | Frequency of activities considering online learning during past month | Scale 1–6 | W#_daily_activities (scale 0–11) | |
| social relationships | W#_ACT1d - f | Frequency of activities considering online social relationships during past month | Scale 1–6 | W#_daily_activities (scale 0–11) | ||
| entertainment | W#_ACT1g - h | Frequency of online entertaining activities during past month | Scale 1–6 | W#_daily_activities (scale 0–11) | ||
| content creation | W#_ACT1i - k | Frequency of activities considering online content creation during past month | Scale 1–6 | W#_daily_activities (scale 0–11) | ||
| Online communi- cation |
SNS use | W#_COM1 | Frequency of social network use during past year | Scale 1–7 | ||
| SNS use | W#_COM2_rt | If (2) a few times - (7) almost all the time to item W#_COM1. | Privacy setting on social networks during past year | Categories 0 and 1 | ||
| SNS use | W#_COM3_rt | If (2) a few times - (7) almost all the time to item W#_COM1. | Friend requests from unknown people during past year | Categories 0 and 1 | ||
| sharing | W#_COM4a - c | Sharing information about myself or others on the internet during past year | Scale 1–6 | |||
| Civic engagement | online civic engagement | W#_CIV1a - e | Measurement of online civic engagement during past year | Scale 1–4 | W#_civic (scale 1–4); W#_civic_dich (categories 0 and 1) | |
| Risks | cyberhate | W#_RISK101 – 106_7_rt2_merged | Items with _rt suffix are routed from previous item | Experience with cyberhate | Categories 0 and 1 or frequencies | |
| harmful content | W#_RISK201 – 206_7_rt2_merged | Items with _rt suffix are routed from previous item | Experience with online harmful content | Categories 0 and 1 or frequencies | ||
| sexting - receiving | W#_RISK301 - 309_11_rt2_merged | Items with _rt suffix are routed from previous item | Experience with sexting - receiving | Categories 0 and 1 or frequencies | ||
| sexting - sending | W#_RISK312a - b | Items with _rt suffix are routed from previous item | Frequencies of experienced sexting - sending | Scale 1–6 | ||
| sexually explicit materials | W#_RISK401 - 409_11_rt2_merged | Items with _rt suffix are routed from previous item | Experience with online sexual content | Categories 0 and 1 or frequencies | ||
| fake news - health | W#_RISK501a | Making incorrect decisions about my health, fitness, or dieting | Scale 1–6 | |||
| misinformation and fake news | W#_RISK501b - c | Sharing misinformation | Scale 1–6 | |||
| cybervictimisation | W#_RISK601 | Experience with hurtful online treatment | Scale 1–6 | |||
| cyberaggression via sharing | W#_RISK602 | Experience with sharing hurtful online content | Scale 1–6 | |||
Note. The prefix W# in variable names serves as identifier for the particular wave in which the variables were measured. In the dataset, “W1” is used to indicate variables measured in Wave 1, “W2” for Wave 2, and “W3” for Wave 3.