Tehran University of Medical Sciences Iranian Journal of Psychiatry 1735-4587 17 4 2022 09 14 469 475 Behnaz Dowran Behavioral Sciences Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran. Fatemeh Forouzesh Yekta Department of Clinical Psychology, Faculty of Humanities, Shahed University, Tehran, Iran. Elham Aghaie Department of Psychology, Islamic Azad University, Tehran Center Branch, Tehran, Iran. 2021 06 02 Objective: The growing popularity of computer games has attracted the attention of researchers in this field. The underlying psychological motives of gamers are important to prevention of disorders related to online gaming. This study was aimed at evaluating the psychometric characteristics of the Iranian version of the Motives for Online Gaming Questionnaire (I-MOGQ) and its association with Internet Gaming Disorders (IGD). Method: Four hundred and fifty-two Iranian adult gamers (mean age = 21.5 years, SD = 4.14) voluntarily responded to the anonymous survey online. All participants in this study were males. The questionnaires used in this study were MOGQ and IGD Scale. We performed confirmatory factor analysis (CFA) for MOGQ. Also, the correlation between MOGQ and IGD was evaluated. Results: CFA supports the construct validity of the questionnaire (RMSEA < 0.08). Cronbach's alpha, as an indicator of internal consistency of the questionnaire, was 0.91 (Social = 0.85, Escape = 0.84, Competition = 0.83, Coping = 0.79, Skill Development = 0.89, Fantasy = 0.85 and Recreation = 0.83). Also, the scale displayed adequate convergent validity, as shown by significant positive correlations with IGD scores. The highest correlation was found with the Escape motive (0.57) and the lowest was found with Recreation (0.15). Conclusion: This study showed that the Iranian version of the MOGQ is a valid and reliable scale for identifying the motives for online gaming among young adults. https://ijps.tums.ac.ir/index.php/ijps/article/view/2758 https://ijps.tums.ac.ir/index.php/ijps/article/download/2758/1077