Participants answered several questions on their use of electronic devices (section: lifestyle & environment).
Assessment of mobile phone use can be found here here, and assessment of compulsive use of internet can be found here. Note that questions on this topic have been asked to child participants as well, see subsections Hobbies & Activities (<18) and Screen use (<18).
Also note that more detailed questions regarding electronic device use (and their effect on sleeping patterns) were asked to a subcohort of adults in the additional questionnaire on shiftwork (SHIQ) and to a subcohort of children in the additional questionnaire on blue light exposure (BLUQ).
| Questions English | Questions Dutch | Code | Variable | Assessment | Age |
| on average how many hours per day do you spend watching tv? | hoeveel tijd (xx uren) besteedt u gemiddeld per dag aan televisie kijken? | television_timespending_adu_q_1 | tijdsb3a | 1A or 1A | 18+ |
| on average how many minutes per day do you spend watching tv? | hoeveel tijd (xx minuten) besteedt u gemiddeld per dag aan televisie kijken? | television_timespending_adu_q_1_a | tijdsb3b | 1A or 1A | |
| chat, whatsapp, ping (exchanging short text messages) / how often per day do you use the following online functions? | chatten, whatsappen, pingen (het uitwisselen van korte tekstberichten) / hoe vaak per dag gebruikt u de volgende online functies? | chat_frequency_adu_q_1 | APPL1 | 2B | 18+ |
| profile sites and social network sites (e.g., facebook, twitter, instagram, google+) / how often per day do you use the following online functions? | profielsites en sociale netwerksites (bv. facebook, twitter, instagram, google+) / hoe vaak per dag gebruikt u de volgende online functies? | socialnetworks_frequency_adu_q_1 | APPL2 | 2B | 18+ |
| search engines and information sites (e.g. google, wikipedia, nu.nl, weeronline) / how often per day do you use the following online functions? | zoekmachines en informatiesites (bv. google, wikipedia, nu.nl, weeronline) / hoe vaak per dag gebruikt u de volgende online functies? | searchinfo_frequency_adu_q_1 | APPL3 | 2B | 18+ |
| small games (e.g., spele.nl or other small online action games or puzzles) / how often per day do you use the following online functions? | kleine spelletjes (bv. spele.nl of andere kleine online actie- of puzzelspelletjes) / hoe vaak per dag gebruikt u de volgende online functies? | smallgames_frequency_adu_q_1 | APPL4 | 2B | 18+ |
| playing games with other online users (e.g. wow, lol, call of duty) (this does not include small-scale games) / on average, how much time do you spend per week on the following online activities? | games met andere online gebruikers (bv. wow, lol, call of duty) (geen kleine spelletjes) / hoeveel tijd besteedt u gemiddeld per week aan de volgende online activiteiten? | gaming_duration_adu_q_1 | APPL5 | 2B | 18+ |
| online shopping (eg, marktplaats, ebay, webshops) / on average, how much time do you spend per week on the following online activities? | online shoppen (bv. marktplaats, webshops) / hoeveel tijd besteedt u gemiddeld per week aan de volgende online activiteiten? | shopping_duration_adu_q_1 | APPL6 | 2B | 18+ |
| online gambling (eg, poker) / on average, how much time do you spend per week on the following online activities? | online gokken (bv. pokeren) / hoeveel tijd besteedt u gemiddeld per week aan de volgende online activiteiten? | gambling_duration_adu_q_1 | APPL7 | 2B | 18+ |
| searching for / watching erotic images or videos (e.g. porn sites) / on average, how much time do you spend per week on the following online activities? | het zoeken/bekijken van erotische beelden of filmpjes (bv. pornosites) / hoeveel tijd besteedt u gemiddeld per week aan de volgende online activiteiten? | pornsites_duration_adu_q_1 | APPL8 | 2B | 18+ |