Objective: The main aims of the current study were to test the factor structure, reliability and validity of the Ten-Item Internet Gaming Disorder Test (IGDT-10), a standardized measure to assess symptoms and prevalence of Internet gaming disorder (IGD).

Method: In the present study participants were assessed with the IGDT-10, the nine-item Internet Gaming Disorder Scale- Short Form (IGDS9-SF) and the Motives for Online Gaming Questionnaire (MOGQ).

Results: Confirmatory factor analysis showed that the IGDT-10's one-factor structure (i.e., dimensional structure) was satisfactory. The scale was also reliable (i.e., internally consistent with a Cronbach's alpha of 0.79) and showed adequate convergent and criterion-related validity as shown by positive correlations between average daily spent playing games over the past year, IGDS9-SF and MOGQ scores. By applying the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5) threshold to diagnose IGD (e.g. endorsing at least five criteria), the incidence of individuals with IGD was found to be 7.4 percent (n = 56) in the entire sample.

Conclusion: These results support the Turkish version of the IGDT-10 as a valid and reliable instrument for determining the magnitude of problems associated with IGD among young adults and for early diagnosis of IGD in clinical environments and comparable studies.