====== Internet use (CIUS) ======

The Compulsive Internet Use Scale (CIUS) is an instrument aimed to assess the severity of [[https://en.wikipedia.org/wiki/Internet_addiction_disorder|compulsive internet use]]((Meerkerk et al. (2009). The Compulsive Internet Use Scale (CIUS): some psychometric properties. CyberPsychology & Behavior, 12(1), 1-6)), which may have negative consequences for health and well-being ([[Sections|section]]: [[Lifestyle & environment]]).

===== Background =====

The CIUS was originally developed in Dutch. It consists of 14 self-report items, with answer categories on a 5-point [[https://en.wikipedia.org/wiki/Likert_scale|Likert scale]]: (0) never, (1) seldom, (2) sometimes, (3) often, (4) very often.

===== Variables ======

| **Questions English**                                                                                                                      | **Questions Dutch**                                                                                                              | **Code**                    | **Variable**  | **Assessment**  | **Age**  |
| how often do you find it difficult to stop using the internet?                                                                             | hoe vaak vindt u het moeilijk om met internetten te stoppen?                                                                     | cius_stop_adu_q_01          | CIUS1         | [[2B]]          | 18+      |
| how often do you continue using the internet, even after you had intended to stop?                                                         | hoe vaak gaat u langer door met internetten, terwijl u zich had voorgenomen om te stoppen?                                       | cius_intention_adu_q_02     | CIUS2         | [[2B]]          | 18+      |
| how often do others (e.g. partner, children, parents, friends) say that you should spend less time on the internet?                        | hoe vaak zeggen anderen (bv. partner, kinderen, ouders, vrienden) dat u minder zou moeten internetten?                           | cius_others_adu_q_03        | CIUS3         | [[2B]]          | 18+      |
| how often do you prefer to spend time using the internet than with other people (e.g. partner, children, parents, friends)?                | hoe vaak gaat u liever internetten dan dat u uw tijd met anderen doorbrengt (bv. partner, kinderen, ouders, vrienden)?           | cius_social_adu_q_04        | CIUS4         | [[2B]]          | 18+      |
| how often do you lose sleep from using the internet?                                                                                       | hoe vaak komt u slaap te kort door het internetten?                                                                              | cius_sleep_adu_q_05         | CIUS5         | [[2B]]          | 18+      |
| how often do you think about using the internet, even when you are not online?                                                             | hoe vaak bent u in gedachten aan het internetten, ook als u niet online bent?                                                    | cius_thoughts_adu_q_06      | CIUS6         | [[2B]]          | 18+      |
| how often do you eagerly look forward to the next time you can use the internet?                                                           | hoe vaak verheugt u zich op de volgende keer dat u kunt internetten?                                                             | cius_anticipation_adu_q_07  | CIUS7         | [[2B]]          | 18+      |
| how often do you think that you should use the internet less?                                                                              | hoe vaak denkt u dat u eigenlijk minder zou moeten internetten?                                                                  | cius_intention_adu_q_08     | CIUS8         | [[2B]]          | 18+      |
| how often have you tried, but failed, to spend less time using the internet?                                                               | hoe vaak hebt u geprobeerd om minder tijd aan internetten te besteden en is dat niet gelukt?                                     | cius_limit_adu_q_09         | CIUS9         | [[2B]]          | 18+      |
| how often do you rush through your work (including at home) so you can use the internet?                                                   | hoe vaak raffelt u uw werk (ook thuis) af om te kunnen internetten?                                                              | cius_work_adu_q_10          | CIUS10        | [[2B]]          | 18+      |
| how often do you fail to meet your daily obligations (in terms of work, school or family) because you would rather be using the internet?  | hoe vaak komt u uw dagelijkse verplichtingen (op het gebied van werk, school of gezin) niet na omdat u liever wilt internetten?  | cius_duties_adu_q_11        | CIUS11        | [[2B]]          | 18+      |
| how often do you use the internet because you feel awful?                                                                                  | hoe vaak gaat u internetten omdat u zich rot voelt?                                                                              | cius_emotions_adu_q_12      | CIUS12        | [[2B]]          | 18+      |
| how often do you use the internet to escape from problems or relieve negative feelings?                                                    | hoe vaak gaat u internetten om problemen te ontvluchten of negatieve gevoelens te verlichten?                                    | cius_problems_adu_q_13      | CIUS13        | [[2B]]          | 18+      |
| how often do you feel uneasy, stressed or irritated when you cannot use the internet?                                                      | hoe vaak voelt u zich onrustig, gestrest of geïrriteerd wanneer u niet kunt internetten?                                         | cius_restless_adu_q_14      | CIUS14        | [[2B]]          | 18+      |