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Objective: This study aimed to assess the validity and reliability of the Turkish version of DSM-5 Level 2 Repetitive Thoughts and Behaviors Scale-Child Form. Methods: The scale was prepared by carrying out the translation and back translation of DSM-5 Level 2 Repetitive Thoughts and Behaviors Scale -Child Form. Study group consisted of 37 patients that have been treated in a child psychiatry unit and diagnosed with obsessive-compulsive disorder and 32 healthy volunteers that were attending middle or high school during the study period. For reliability analyses, internal consistency coefficient and item-total score correlation analysis and for validity analyses, explanatory factor analysis was made and the discriminative quality of the scale regarding community and clinical samples were shown with ROC Curve. Results: Regarding reliability analyses, Cronbachs alpha internal consistency coefficient was calculated as 0.910 while item-total score correlation coefficients were measured between 0.674 and 0.878. Test-retest correlation coefficient was calculated as r=0.928. As for construct validity, a factor that could explain 73.5% of the variance was obtained. In ROC analysis, area under ROC curve was calculated as 0.956. Conclusion: It was concluded that Turkish version of DSM-5 Level 2 Repetitive Thoughts and Behaviors Scale -Child Form could be utilized as a valid and reliable tool both in clinical practice and for research purposes. [Anadolu Psikiyatri Derg 2017; 18(0.200): 107-113]