Article Information Methods: The statistical population of the study is all Afghan refugee adolescent students in Iran who are studying at international schools in Tehran province. 406 participants were randomly selected, between the ages of 14 and 18, (166 boys and 240 girls). The tool of this research is an Acculturative Stress Scale that evaluates the translation validity, content validity and construct validity. Results: The results showed that the Acculturative Stress Scale in Afghan

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... cent samples has good content validity. The results have confirmed the three factor structure of Acculturative Stress Scale in Afghan refugee adolescent samples in Iran. Exploratory factor analysis results for each variable was: process-oriented stress (32.76%), social stress (9.43%), and perceived discrimination (3.47%); this explained that in total 46% of the variance was explained by these three factors and the goodness index of fit is 0.40 which is at the very adequate level. Conclusion: This tool can be used to identify the risk factors in the adolescent refugee population. Also, this tool can examine the challenges of positive adaptation to the new environment and prevent mental disorders associated with acculturative stress. It is necessary for researchers to pay attention to the context, social and cultural status when assessing the acculturative stress.