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Development and psychometric validation of internet gaming disorder Scale - Short-Form (IGDS9-SF) in a Brazilian sample

Severo, RB, Barbosa, APPN, Fouchy, DFC, da Cunha Coelho, FM, Pinheiro, RT, de Figueiredo, VLM, de Siqueira Afonso, V, Pontes, HM ORCID: 0000-0001-8020-7623 and Pinheiro, KAT 2019 , 'Development and psychometric validation of internet gaming disorder Scale - Short-Form (IGDS9-SF) in a Brazilian sample' , Addictive Behaviors , doi:

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Objectives: The aim of this study was to develop and examine the psychometric properties of the IGDS9-SF in a sample of Brazilian gamers and to find the best cut-off point for this instrument using a normative and clinically diagnosed sample of gamers. Methods: A total of 610 participants were recruited to the present study. Construct validity was assessed through Exploratory and Confirmatory Factor Analysis (EFA, CFA). Criterion-related validity was established through the associations with Game Addiction Scale (GAS) and weekly gameplay. Reliability analysis was performed using the Cronbach’s alpha (α) as the indicator of internal consistency. A cut-off point was estimated using the Receiver Operating Characteristics Curve (ROC curve) where the results of a clinical assessment was used as the gold standard. Results: EFA and CFA findings confirmed the single-factor structure of the IGDS9-SF. Positive correlations indicated adequate criterion-related validity, and the scale was shown to be reliable (α=0.82). Finally, the optimal cut-off point for risky gaming was found to be >16 points and for diagnosis to be >21 points. Conclusions: This study provides validity and reliability evidence for the use of the Brazilian version of the IGDS9-SF in the assessment of Internet Gaming Disorder, further supporting its usefulness as a robust psychometric tool that can be employed in clinical and research settings in Brazil.

Item Type: Article
Authors/Creators:Severo, RB and Barbosa, APPN and Fouchy, DFC and da Cunha Coelho, FM and Pinheiro, RT and de Figueiredo, VLM and de Siqueira Afonso, V and Pontes, HM and Pinheiro, KAT
Keywords: addictive behaviors, computer games, IGD, IGDS9-SF, internet gaming disorder, psychometrics
Journal or Publication Title: Addictive Behaviors
Publisher: Pergamon-Elsevier Science Ltd
ISSN: 0306-4603
DOI / ID Number:
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© 2019 Elsevier Ltd. All rights reserved.

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