Development of a short form of the compulsive internet use scale in Switzerland.

Details

Serval ID
serval:BIB_CCBA2053BFC0
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Development of a short form of the compulsive internet use scale in Switzerland.
Journal
International journal of methods in psychiatric research
Author(s)
Gmel G., Khazaal Y., Studer J., Baggio S., Marmet S.
ISSN
1557-0657 (Electronic)
ISSN-L
1049-8931
Publication state
Published
Issued date
03/2019
Peer-reviewed
Oui
Volume
28
Number
1
Pages
e1765
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
The study aims to develop a short form of the compulsive internet use scale (CIUS), which can be used in multitopic and general population health surveys and is invariant across different sexes, linguistic regions, and ages.
Two general population surveys from 2013 and 2015 were used as learning (n = 1,371) and validation samples (n = 1,550), respectively. Reducing items from the original CIUS was based on the following: (a) correlated errors between items, (b) differential item functioning, and (c) measurement invariance. Methods used item response theory and latent confirmatory factor analysis for ordinal variables.
The eight-item short form maintained the five dimensions of the original scale and was metric and mostly scale invariant for sex, region, and age. It fell marginally short of scale invariance (ΔCFI < 0.01) for regions in the learning sample and for sexes in the validation sample (both ΔCFI = 0.013, p < 0.01). Root mean square error of approximation was 0.045 and 0.036, and comparative fit index was 0.989 and 0.995, in the learning and validation samples, respectively, showing excellent fit of the model to data. Correlations with the full scale were r = 0.966 (learning) and r = 0.969 (validation).
If the full 14-item CIUS is a valid, reliable screening instrument, then the short eight-item form is too, and can be used in multitopic, general population health surveys.
Keywords
Adolescent, Adult, Compulsive Behavior/diagnosis, Female, Humans, Internet/statistics & numerical data, Male, Psychiatric Status Rating Scales, Psychometrics, Reproducibility of Results, Switzerland, Young Adult, French, German, Italian, compulsive internet use, differential item functioning, short form
Pubmed
Web of science
Open Access
Yes
Create date
24/01/2019 10:39
Last modification date
23/01/2020 7:19
Usage data