Evidence map›Paper›PMID 30648311›Full record

ArticleInternational journal of methods in psychiatric research2019

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

Gerhard Gmel, Yasser Khazaal, Joseph Studer, Stéphanie Baggio, Simon Marmet

Abstract read
In one paragraph

Article in International journal of methods in psychiatric research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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  9. Development of a short form of the compulsive internet use scale in Switzerland.International journal of methods in psychiatric research · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Gerhard GmelAlcohol Treatment Centre, Lausanne University Hospital, Lausanne, Switzerland.ORCID 0000-0001-9403-9405
Yasser KhazaalDepartment of Mental Health and Psychiatry, Geneva University Hospitals, Geneva, Switzerland.
Joseph StuderAlcohol Treatment Centre, Lausanne University Hospital, Lausanne, Switzerland.
Stéphanie BaggioDivision of Prison Health, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.ORCID 0000-0002-5347-5937
Simon MarmetAlcohol Treatment Centre, Lausanne University Hospital, Lausanne, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe 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.

methodsTwo 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.

resultsThe 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).

conclusionIf 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.

Indexed as

Psychiatric Status Rating ScalesAdolescentAdultCompulsive BehaviorFemaleHumansInternetMalePsychometricsReproducibility of ResultsSwitzerlandYoung Adultcompulsive internet usedifferential item functioningFrenchGermanItalianshort form

Identifiers

PMID30648311
PMCPMC6877144

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.