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, Development and psychometric validation of internet gaming disorder Scale - Short-Form (IGDS9-SF) in a Brazilian sample, Addictive Behaviors ISSN 0306-4603 (2019) [Refereed Article]
© 2019 Elsevier Ltd. All rights reserved.
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:||Refereed Article|
|Keywords:||addictive behaviors, computer games, IGD, IGDS9-SF, internet gaming disorder, psychometrics|
|Research Division:||Psychology and Cognitive Sciences|
|Research Field:||Personality, Abilities and Assessment|
|Objective Group:||Public Health (excl. Specific Population Health)|
|Objective Field:||Mental Health|
|UTAS Author:||Pontes, HM (Dr Halley Pontes)|
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