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Evaluating an Internet Gaming Disorder Scale Using Mokken Scaling Analysis.

Turi Reiten Finserås1, Ståle Pallesen2, Rune Aune Mentzoni2

  • 1Department of Clinical Psychology, University of Bergen, Bergen, Norway.

Frontiers in Psychology
|May 14, 2019
PubMed
Summary

Internet Gaming Disorder (IGD) criteria show moderate unidimensionality in the general population and females, but not males when including the "tolerance" item. Previous gaming addiction and male gender are strong predictors of IGD.

Keywords:
Internet Gaming DisorderMokken scale analysismental healthpathological video gamingpsychometric properties

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Area of Science:

  • Psychology
  • Mental Health
  • Behavioral Science

Background:

  • Internet Gaming Disorder (IGD) is a condition for further study in the DSM-5.
  • Understanding the construct validity of IGD is crucial for accurate diagnosis and research.
  • Previous research has not fully established the unidimensionality of IGD criteria.

Purpose of the Study:

  • To investigate whether the Internet Gaming Disorder (IGD) criteria form a unidimensional construct.
  • To examine if the IGD scale functions similarly for males and females.
  • To assess the predictive validity of the IGD scale using mental health predictors.

Main Methods:

  • Mokken scale analysis was used to assess unidimensionality of IGD criteria in a Norwegian sample (N=1258) across two time points (2012 and 2014).
  • Correlation analysis was conducted between IGD scale scores and the Gaming Addiction Scale for Adolescents (GASA).
  • Negative binomial regression analyses examined predictors of IGD, including mental health factors from 2012.

Main Results:

  • Mokken analysis indicated moderate unidimensionality (H > 0.40) for the IGD scale in the total sample and for females.
  • The
  • tolerance
  • item reduced unidimensionality in males, resulting in weak unidimensionality (H > 0.30) for an eight-item scale.
  • Significant positive correlations were found between IGD and GASA scores (simultaneous: r=0.71; longitudinal: r=0.48).
  • Previous video-game addiction, male gender, depression, aggression, and loneliness predicted IGD, with large associations for prior addiction and gender.

Conclusions:

  • The IGD scale demonstrates moderate unidimensionality for the general population and females, but requires caution when applied to males due to the
  • tolerance
  • item.
  • The IGD scale exhibits predictive validity, supported by correlations with GASA and significant predictors identified.
  • Further research may be needed to refine the IGD scale or its application, particularly concerning gender differences and the
  • tolerance
  • item.