Table 2.

Summary of 16 multilevel models exploring the association between intervention core components and student outcomes

	Safety preparedness		Internal safety locus of control		Risk-taking attitudes		Safety motivation
	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI
Group-level safety skills training	0.52**	0.27, 0.77	0.65**	0.34, 0.97	− 0.26	− 0.82, 0.29	0.37*	0.06, 0.69
Group-level safety inoculation training	0.28*	0.06, 0.50	0.30*	0.03, 0.57	0.02	− 0.39, 0.44	0.18	− 0.07, 0.44
Group-level positive learning atmosphere	0.17*	0.02, 0.31	0.14	− 0.04, 0.33	− 0.11	− 0.39, 0.15	0.20*	0.03, 0.36
Group-level active learning techniques	0.13	− 0.01, 0.28	0.11	− 0.07, 0.30	− 0.17	− 0.44, 0.08	0.18*	0.03, 0.34

Student group was included as a random effect to account for clustering in all study models. All models were adjusted for baseline outcome value