Cohen-Mansfield, PhD, J., L. Truong, PhD, R. Gavendo, BA, CTRS, E. Blackburn, BA, CTRS, and K. Hirshfeld, MA, CTRS. “Which Group Activities Work Best for Persons With Dementia? A Comparison of Ratings from Therapeutic Recreation Staff and Research Observers”. American Journal of Recreation Therapy, vol. 18, no. 2, Apr. 2019, pp. 39-48, doi:10.5055/ajrt.2019.0188.