Back to Resource Library Outcomes of a hospital-based recreation program Koller, D., Gryski, C. · 2009 ★ NIFPlay Rating: 4 Rating Scale 10 Rigorous play-specific science 6–9 General biological science 5 Sound play research (uncontrolled) 1–4 Less rigorous / indirect 0 Indirect but high value Evaluates the effects of a structured hospital recreation programme on children's wellbeing, coping, and developmental engagement during hospitalisation. View Resource