Test-retest measurement invariance of the nine-item Internet Gaming Disorder Scale in two countries: a preliminary longitudinal study

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Stavropoulos, V, Bamford, L, Beard, C, Gomez, R and Griffiths, MD ORCID: https://orcid.org/0000-0001-8880-6524, 2021. Test-retest measurement invariance of the nine-item Internet Gaming Disorder Scale in two countries: a preliminary longitudinal study. International Journal of Mental Health and Addiction, 19, pp. 2003-2020. ISSN 1557-1874

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Official URL: http://doi.org/10.1007/s11469-019-00099-w

Abstract

The reliable longitudinal assessment of Internet Gaming Disorder (IGD) behaviors is viewed by many as a pivotal clinical and research priority. The present study is the first to examine the test-retest measurement invariance of IGD ratings, as assessed using the short-form nine-item Internet Gaming Disorder Scale (IGDS9-SF) over an approximate period of 3 months, across two normative national samples. Differences referring to the mode of the data collection (faceto-face [FtF] vs. online) were also considered. Two sequences of successive multiple group confirmatory factor analyses (CFAs) were calculated to longitudinally assess the psychometric properties of the IGDS9-SF using emergent adults, gamers from (i) the United States of America (USA; N = 120, 18–29 years, Meanage = 22.35, 51.6% male) assessed online and; and (ii) Australia (N = 61, 18–31 years, Meanage = 23.02, 75.4% male) assessed FtF. Configural invariance was established across both samples, and metric and scalar invariances were supported for the USA sample. Interestingly, only partial metric (factor loadings for Items 2 and 3 non-invariant) and partial scalar invariance (i.e., all thresholds of Items 1 and 2, and thresholds 1, 3, for Items 4, 6, 8, and 9 non-invariant) were established for the Australian sample. Findings are discussed in the light of using IGDS9-SF to assess and monitor IGD behaviors over time in both in clinical and non-clinical settings.

Item Type:	Journal article
Publication Title:	International Journal of Mental Health and Addiction
Creators:	Stavropoulos, V., Bamford, L., Beard, C., Gomez, R. and Griffiths, M.D.
Publisher:	Springer
Date:	December 2021
Volume:	19
ISSN:	1557-1874
Identifiers:	Number Type 10.1007/s11469-019-00099-w DOI 1067553 Other
Rights:	© The Author(s) 2019. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Divisions:	Schools > School of Social Sciences
Record created by:	Jill Tomkinson
Date Added:	29 May 2019 14:57
Last Modified:	06 Dec 2021 09:40
URI:	https://irep.ntu.ac.uk/id/eprint/36680