Table 3.

TOPI Outcomes

Time	Effect	Variable	Coefficient (SE)	χ2(1)	p-value	f2
Immediate	Treatment	Joint Engage	7.05 (9.44)	0.56	0.46	<0.01
		Parallel	−12.50 (9.67)	1.67	0.20	0.04
		Solitary	5.94 (10.33)	0.33	0.57	<0.01
	Overall	Joint Engage	−2.43 (4.64)	0.27	0.60	0.01
		Parallel	3.81 (4.92)	0.60	0.44	0.01
		Solitary	−1.31 (5.18)	0.06	0.80	<0.01
Delayed	Treatment	Joint Engage	7.81 (9.86)	0.63	0.43	0.01
		Parallel	−3.46 (9.47)	0.13	0.72	<0.01
		Solitary	−1.72 (10.03)	0.17	0.68	<0.01
	Overall	Joint Engage	10.75 (4.84)	4.94	0.03*	0.06
		Parallel	0.05 (4.73)	<0.01	0.99	<0.01
		Solitary	−11.19 (5.11)	4.78	0.03*	0.08

Results from linear mixed models for TOPI engagement state outcomes controlling for IQ, Site, and Diagnosis with random intercept for individual; For treatment effect: reference is ENGAGE and coefficient corresponds to difference between SKILLS vs. ENGAGE; For overall effect: model includes main effect of treatment and time without interaction with the coefficient corresponding to the main effect of time (baseline vs exit or baseline vs follow-up).;

^*Indicates significance at α=0.05 and

^**Indicates significance at α=0.05/3=0.0167