Abstract
BACKGROUND: Health promotion of children and adolescents through participation in purposeful and meaningful activities is one of the focuses of occupational therapy. In this study, in line with the Iranian culture, a tool for assessment of Iranian adolescents' participation in daily occupations/activities was developed and validated. METHOD: An exploratory sequential mixed method was used to develop and validate the tool. Content and structural validity and reliability of the initial version were estimated. RESULTS: During the validation process, the items were reduced to 54. Data were collected from 481 adolescents to investigate factor analysis. According to principal component analysis, the Kaiser-Meyer-Olkin index was 0.88, and the analysis yielded seven factors explaining 47.2% of the total variance. The tool showed excellent internal consistency and test-retest reliability. CONCLUSION: This newly developed Participation Assessment Tool for Iranian adolescents is a valid and reliable measure for assessing the participation of this group in daily activities.