Back to Resource Library The longitudinal relationship between generalized self-efficacy and physical activity in school-aged children Sallis, J.F., Calfas, K.J., Nichols, J.F., Sarkin, J.A., Johnson, M.F., Caparosa, S., Thompson, S., Alcaraz, J.E. · 1997 ★ NIFPlay Rating: 3 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 Longitudinal study examining the bidirectional relationship between self-efficacy beliefs and physical activity participation over time in school-aged children. View Resource