Fox, BS, N.C. and Loy, PhD, CTRS/LRT, D.P. 2019. Observational Play Assessment in Recreational Therapy (OPART): A case study for the validation of assessments in recreational therapy. American Journal of Recreation Therapy. 18, 1 (Jan. 2019), 39–45. DOI:https://doi.org/10.5055/ajrt.2019.0180.