Table 7.

Overall Change as a Function of Intervention Characteristics (k = 216).

	d.
	Yes	No	Fixed-effects QB	Random-effects QB
Active intervention	0.20	0.33	140.01***	.34
Face-to-face delivery	0.29	0.14	330.60***	7.00*
Culturally appropriate intervention	0.35	0.25	17.28***	3.44
Intervention targeted to specific gender	0.36	0.23	121.83***	6.50*
Intervention targeted to specific ethnic group	0.33	0.24	12.24***	1.21

Note. d. = fixed-effects weighted means. No-intervention control groups (k = 39, d. = .06, confidence interval = −0.01, 0.12) and groups making a single recommendation (k = 15, d. = .07, confidence interval = 0.02, 0.13) were excluded. All factors were dummy coded (characteristic present = 1; characteristic not present = 0). QB = homogeneity coefficient for the difference across levels of a factor, distributed as a chi-square with degrees of freedom equal to the number of factor levels − 1.

^*p < .05,

^**p < .01,

^***p < .001