Table 13.

Significant predictors of effectiveness in round 2.

Strategy	β(SE)	Wald	p-value	95% confidence interval
Challenge tasks	−3.31 (1.41)	5.52	0.019	[−6.07, −0.55]
Cooperative learning	2.03 (1.24)	2.67	0.102	[−0.41, 4.47]
Peer teaching	1.74 (1.23)	2.01	0.157	[−0.67, 4.15]
Skill breakdown	−3.56 (1.30)	7.58	0.006	[−6.10, −1.03]

Values in bold italic indicate statistical significance at p < 0.05.