A new tool to measure occupational balance: Adolescent Occupational Balance Scale (A-OBS).

Background: The concept of occupational balance in adolescents is not clear enough.

Aim: The current study aims at developing a valid and reliable scale to measure occupational balance in adolescents.

Method: We conducted online interviews with the participant adolescents via semi-structured interview forms. We applied the Davis technique twice to 10 expert panellists and the test form to 600 individuals. Two weeks later, we re-tested 153 of the participants. We then carried out item analysis to evaluate the internal consistency of the scale. We also conducted explanatory factor analysis (EFA) and confirmatory factor analysis (CFA) to examine the construct validity of the scale.

Findings: The content validity index of the scale was found to be 0.986. EFA showed that the scale consisting of 27 items had a six-factor structure explaining 56.7% of the total variance. Model fit indices about the structure created by factor combination technique in CFA were CMIN/df = 2.135; RMSEA = 0.06; GFI = 0.866; NFI = 0.81, CFI = 0.887, TLI = 0.868; IFI = 0.89. The analysis to test the reliability of the scale resulted in ICC: 0.993 and Cronbach's alpha: 0.997. Pre-test and post-test analyses showed very strong correlational coefficients (p < 0.005).

Conclusion: A-OBS is a valid and reliable scale consisting of 27 items and 4 sub-dimensions. It can be used in studies that will focus on occupational balance in healthy adolescents. It is the first occupational balance scale developed for adolescents in the occupational therapy literature. We recommend further studies to validate the scale and adapt it to different languages and cultures.