Table 2.

Means and Effect Sizes for CBT+DCS and CBT+Placebo Groups, Intent to Treat Sample

		Pretreatment		Posttreatment			3 mo. follow-up
	Group	Mean	SD	Mean	SD	Pre to post effect size	Mean	SD	Pre to 3 mo. effect size	Test
CPSSa	CBT+DCS	33.3	10.9	16.8	12.5	1.5	16.3	12.5	1.5	Drug p<0.0001
	CBT+P	26.3	9.2	9.3	8.0	1.9	10.0	6.7	2.0	Time p<0.0001
										Drug×time NS
CDIa	CBT+DCS	33.0	11.3	21.7	10.2	1.0	19.5	12.7	1.1	Drug p<0.0001
	CBT+P	28.1	7.8	16.2	7.8	1.5	15.8	5.7	1.8	Time p<0.0001
										Drug×time NS
SCAREDa	CBT+DCS	50.2	16.0	36.4	18.3	0.9	31.7	19.0	1.0	Drug p<0.0001
	CBT+P	40.7	14.3	23.4	13.4	1.2	21.6	12.0	1.5	Time p<0.0001
										Drug×time NS
ODDb	CBT+DCS	11.1	8.4	7.9	7.5	0.4	8.4	8.7	0.3	Drug p<0.0001
	CBT+P	10.6	8.4	5.5	6.2	0.6	6.6	6.5	0.5	Time p<0.0001
										Drug×time NS
Inattentionb	CBT+DCS	17.4	11.0	10.8	10.2	0.6	10.8	10.1	0.6	Drug p<0.0001
	CBT+P	15.4	8.0	8.5	7.1	0.9	9.8	7.3	0.7	Time p<0.0001
										Drug p<0.05
Hyperactivityb	CBT+DCS	8.3	6.6	6.4	7.5	0.3	6.4	7.6	0.3	Drug p<0.0001
	CBT+P	7.7	7.2	4.7	6.4	0.4	4.8	5.7	0.5	Time p<0.0001
										Drug×time NS

^aEither/or joint ratings from youth and parents.

^bParent ratings.

CBT, cognitive behavioral therapy; DCS, D-cycloserine; CPSS, Child Posttraumatic Stress Disorder (PTSD) Symptom Scale; P, placebo; NS, not significant; CDI, Child Depression Inventory; SCARED, Screen for Child Anxiety Related Disorders; ODD, oppositional defiant disorder.