. Author manuscript; available in PMC: 2013 Oct 1.

Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2012 Aug 28;51(10):1052–1065. doi: 10.1016/j.jaac.2012.08.003

Table 5.

Regression analysis of assignment group differences in parent–child interaction scores at Time 1 (T1) and Time 2 (T2).

ESDM		Control		t-test for group difference, p value
n	41	n	40
T1, mean (sd)	40.05(5.93)	Time 1, mean (sd)	37.83 (6.97)	0.127
T2, mean (sd)	45.2(8.68)	Time 2, mean (sd)	41.18 (8.53)	0.039
mean change (sd)	5.14(9.04)	mean change (sd)	3.35 (9.35)	0.382
Cohen’ s d	0.57	Cohen’s d	0.36
t-test comparing T1 and T2, p	0.001	t-test comparing T1 and T2, p	0.029

Note: ESDM = Early Start Denver Model.