Background Gaming disorder was added to the 11th version of the international classification of disease by the world health organization in early 2019. Adolescents are the most vulnerable group in this area. Thus, a screening tool for this age range is essential. This study aims to examine the psychometric properties of the gaming disorder scale for adolescents (GADIS-A) in an Iranian male sample. Methods 260 male students-7th to 12th grade-from Isfahan city in the academic year 2020–2021 were selected using convenience sampling. The participants responded to the Farsi version of the GADIS-A and problematic online game questionnaire (POGQ). Thirty participants answered the scale again to assess the validity of the retest. Pearson’s correlation analysis, Cronbach’s alpha, and confirmatory factor analysis were used. The data were analyzed by SPSS version 24 and R software packages psych and lavaan. Results Confirmatory factor analysis revealed that the two-factor model, which included cognitive-behavioral symptoms and negative consequences, had good fitness indices. The GADIS-A convergent validity is confirmed by the scale’s significant correlation with the POGQ. Cronbach’s alpha coefficient was used to determine the scale’s validity, which was 0.85 for the full scale and 0.70 and 0.75 for two factors. The validity of the retest after two weeks also showed a correlation of 0.88. Conclusion The Farsi version of the gaming disorder scale for adolescents has a two-factor structure and is valid for use in Iran.
Background Gaming disorder was added to the 11th international classification of disorders by the World Health Organization in early 2019. Adolescents are the most vulnerable group in this area, thus a screening tool for this age range is essential. This study aims to examine psychometric properties of the Gaming Disorder Scale for Adolescents (GADIS-A) in Iranian male sample. Methods 260 students -7th to 12th grade- of Isfahan city in the academic year 2020-21 were selected using convenience sampling. The participants responded to the Farsi version of the GADIS-A and problematic online game questionnaire (POGQ). Thirty participants answered the scale again to assess validity of the retest. Pearson’s correlation analysis, Cronbach's alpha and confirmatory factor analysis were used in this research. The data were analyzed by SPSS version 24 and LISREL version 8.8. Results Confirmatory factor analysis revealed that the two-factor model, which included cognitive-behavioral symptoms and negative consequences, had good fitness indices. The GADIS-A convergent validity is confirmed by the scale's significant correlation with the POGQ. Cronbach's alpha coefficient was used to determine the scale's validity, which was 0.85 for the full scale and 0.70 and 0.75 for two factors. The validity of the retest after two weeks also showed a correlation of 0.88. Conclusion The Farsi version of the Gaming Disorder Scale for adolescents has a two-factor structure and is valid for use in Iran.
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