Psychometric Properties of the Internet Gaming Disorder Scale–Short-Form (IGDS9-SF): Systematic Review

Abstract

Background The Internet Gaming Disorder Scale–Short-Form (IGDS9-SF) is among the best with regard to its psychometric properties. Therefore, clinical psychologists are likely guided to use the IGDS9-SF if they want to assess or screen the disordered gaming in their practice. However, the information, especially psychometric evidence, concerning the IGDS9-SF has not been fully examined and summarized. Objective This systematic review evaluated the psychometric properties of different language versions of the IGDS9-SF and assessed its methodological quality in order to improve the clinicians’ understanding of the IGDS9-SF and facilitate its use. Methods Systematic literature searches were carried out using Embase, MEDLINE, PsycINFO, PubMed, ScienceDirect, Scopus, and Web of Science. The review included English-language studies of any research design that have reported at least one psychometric property of the IGDS9-SF, as defined by the COnsensus-based Standards for the selection of health status Measurement INstrument (COSMIN), and have aimed at testing the psychometric properties of the IGDS9-SF. Results In total, 21 studies comprising 15 language versions of the IGDS9-SF were included. Overall, the IGDS9-SF showed adequate internal consistency (although some items did not have satisfactory item-total correlation [IT]), excellent criterion validity, and the ability to distinguish different subgroups with measurement invariance being supported across gender and age. In terms of factor structure, the IGDS9-SF was shown to have a unidimensional factor structure across all 21 studies. Conclusions Although there is insufficient evidence regarding the responsiveness and properties of the IGDS9-SF using item response theory, the existing evidence supports its use in assessing disordered gaming among individuals.

Psychometric Evaluation of Three Versions of the UCLA Loneliness Scale (Full, Eight-Item, and Three-Item Versions) among Sexual Minority Men in Taiwan

“…Moreover, several fit indices, including comparative fit index (CFI), Tucker-Lewis index (TLI), root mean square error of approximation (RMSEA) and standardized root mean square residual (SRMR), were used to examine whether the unidimensional structure fit each version of the UCLA Loneliness Scale (Version 3). CFI and TLI > 0.9 with RM-SEA and SRMR < 0.08 indicate satisfactory fit and, therefore, support the unidimensional structure [74].…”

A network analysis of the Internet Disorder Scale–Short Form (IDS9-SF): A large-scale cross-cultural study in Iran, Pakistan, and Bangladesh

“…Moreover, the use of the IDS9-SF has the added benefit of being a cost-effective tool. Second, the present study did not adopt any external criterion instruments (e.g., IGDS9-SF; Poon et al, 2021 ) to investigate how internet addiction associates with other behavioral addictions, as previously shown (Rozgonjuk et al, 2021 ). Therefore, evidence on the concurrent validity of the IDS9-SF was not reported in the present study.…”

“…There is no prior existing evidence on the IDS9-SF regarding its factor structure across different subgroups. However, a similar instrument focusing exclusively on disordered gaming (i.e., Internet Gaming Disorder Scale–Short-Form; IGDS9-SF, Pontes & Griffiths, 2015 ) shows that the nine DSM-5 criteria for IGD are embedded in the same construct across genders and different ethnic groups (see de Palo et al, 2018 ; Pontes et al, 2017 ; Poon et al, 2021 ; Stavropoulos et al, 2018 ). Given that both the IDS9-SF and the IGDS9-SF are rooted in the same diagnostic framework (i.e., DSM-5 [APA, 2013 ]), it is reasonable to postulate that both instruments should share the same unidimensional factor structure with similar psychometric properties.…”

“…Moreover, internet use has significantly expanded given that hardware and Wi-Fi access have become convenient and affordable. As a result, modern society has integrated internet use into life routines for almost every individual (Lee et al, 2016 ; Li et al, 2021 ; Oluwole et al, 2021 ; Poon et al, 2021 ). Apart from the many benefits and convenience brought by the internet (e.g., online interaction without the restrictions of distance; online shopping without the restrictions of business hours), there is mounting evidence reporting the adverse effects emerging from excessive internet use, especially among a minority of individuals such as young adults and adolescents (Alimoradi et al, 2019 ; Kadavala et al, 2021 ; Ranjan et al, 2021 ; Patel et al, 2021 ; Tsai et al, 2018 ).…”

Item Response Theory Analysis of the Fear of COVID-19 Scale (FCV-19S): A Systematic Review

“…Therefore, nonacademic databases, such as Google Scholar database, was not used in the search. Given that such a nonacademic database may provide more comprehensive findings (though the nonacademic database may be hard to screen because it contains a large portion of nonacademic articles in the search output) for scholars to supplement the literature search, 58 the present systematic review may have missed some IRT psychometric studies concerning the FCV-19S. However, the present authors believe that there will not be many because the four academic databases are well known for their coverage in health-related scientific papers.…”