Table II.

Moderator analyses for all outcome measures aggregated.

Model	k	Hedges’ g	95% CI		Qmoderators
			Lower	Upper
Treatment Approach
Intercept (Non-CBT treatments)	31	.12	−.07	.32	.04
CBT versus Non-CBT Treatments		−.02	−.24	.20
Client age
Intercept (Youth clients)	35	.02	−.12	.15	2.58
Adult versus youth clients		.13	−.03	.28
Client diagnostic category
Intercept (Mixed internalizing)	35	.21***	.11	.30	8.79*
Primary anxiety versus mixed internalizing		−.18**	−.30	−.05
Primary depression versus mixed internalizing		.00	−.19	.19
Comorbidity
Intercept (No comorbidity allowed/unknown)	35	.08	−.03	.20	.34
Comorbidity allowed versus not allowed/unknown		.05	−.11	.20
Supervision
Intercept (Less supervision)	33	.18***	.10	.27	6.50*
Equal supervision versus more supervision for less experienced therapists		−.16*	−.28	−.04
Randomization
Intercept (Randomization of clients)	28	.24***	.14	.34	8.19**
No randomization of clients versus randomization of clients		−.18**	−.30	−.06
Treatment manualization
Intercept (No manualization)	35	.19***	.10	.29	4.71*
Treatment manualization versus no manualization		−.14*	−.27	−.01
Definition of therapist experience
Intercept (Specific definitions)	35	.14*	.01	.27	.34
Broad definitions versus specific definitions		−.05	−.21	.11
Study year
Intercept	33	−4.08	−20.15	11.99	.26
Moderator		.002	−.006	.01

Note: CBT: cognitive-behavioral therapy.

^*p <.05.

^**p <.01.

^***p < .001.