Table 3.

Mean Estimated Effect Sizes of Different Intervention Types (Cluster = 324, k = 1348)

Variable	b (SE)	df
Single-behavior intervention	0.25* (0.12)	76.77
Multiple-behavior intervention	0.29** (0.08)	90.98
Passive control	0.04 (0.09)	56.85
I 2	94.63

Note. Report of the robust variance estimation meta-regression using single-behavior intervention as the reference (i.e., intercept). b = unstandardized coefficient; SE = standard error; df = degrees of freedom; p = p value; k = number of effect sizes; I² = proportion of variance due to between-group heterogeneity.

^†p < .10,

^*p < .05,

^**p < .01,

^***p < .001