Table 12. Results of the conditional model with intervention-related variables as predictors.

Fixed effect	Coefficient	SE	t	df	p-Value
Number of sessions	-0.568	0.189	-3.001**	79	0.004
Number of sessions per week	-0.222	0.225	-0.989	79	0.325
Length of each session	0.608	0.212	2.870**	79	0.005
Duration	-0.193	0.189	-1.019	79	0.311
Group size	0.006	0.217	0.026	79	0.979

*p < .05

**p < .01 ***p < .001.