Back to Resource Library Making Playgrounds a Little More Dangerous Schiffman, R. · 2015 ★ 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 Reviews evidence and arguments for reintroducing challenge and risk into playground design, drawing on child development research to support more adventurous play environments. View Resource