A New Short Version of Internet Gaming Disorder-20: An Exploratory Structural Equation Modeling.

Abstract

The purpose of this paper was to contribute to the psychometric properties and dimensionality of the IGD-20. An online survey was completed by 392 Italian online gamers (Mage = 29.2, SD = 11.3; 45.2% males). A battery of self-report questionnaires was administered to assess internet gaming disorder, internet addiction, loneliness, anxiety, depression, stress, social-interaction anxiety, self-esteem, and perceived social support. To test the factor structure of IGD-20, both traditional (i.e., EFA and CFA) and innovative (i.e., ESEM) techniques were applied. Convergent, concurrent, discriminant, and criterion-related validity were evaluated. Our study revealed the outperforming 3-factor ESEM model (χ2=39.951, p = 0.0021; RMSEA = 0.056, 90% C.I. [0.032 - 0.079]; CFI = 0.986; TLI = 0.965; and SRMR = 0.017; ω = .76, .77, and .79, respectively) as a new short version (IGD-10SV) for the IGD-20. The validity of the IGD-10SV was supported by significant associations with theoretically related measures. The current findings support the adoption of the analytic ESEM approach for complex multidimensional measures and the use of the IGD-10SV for the assessment of internet gaming disorder.