Table 3.

Analysis of Intervention Effects

Dependent variable	Group					Time					Group x Time
	γ CI95%	df	t	p		γ CI95%	df	t	p		γ CI95%	df	t	p
Pre-test only
Age	0.33 ± 1.14	23.00	0.61	.550
HOME	−0.03 ± 0.08	23.00	−0.75	.462
Raven’s matrices	−3.99 ± 24.96	23.00	−0.33	.744
Immediate post-test
Trail-making test	0.10 ± 0.40	33.05	0.51	.614		−0.02 ± 0.20	21.00	−0.19	.848		−0.41 ± 0.40*	21.00	−2.12	.047
WCST
Categories completed	−0.46 ± 1.70	35.49	−0.55	.586		0.06 ± 0.83	23.00	0.15	.881		1.04 ± 1.66	23.00	1.30	.205
Trials to 1st category	−9.08 ± 34.06	33.69	−0.54	.591		−7.15 ± 15.41	23.00	−0.96	.347		−3.53 ± 30.83	23.00	−0.24	.815
Failure to maintain set	−0.23 ± 1.20	39.63	−0.39	.700		0.67 ± 0.67†	23.00	2.05	.052		1.33 ± 1.34†	23.00	2.05	.052
Perseverative errors	−10.24 ± 12.63	34.02	−1.65	.108		5.35 ± 5.79†	23.00	1.91	.069		17.31 ± 11.59*	23.00	3.09	.005
Non-perseverative err	−4.77 ± 18.10	44.45	−0.53	.598		−6.09 ± 11.85	23.00	−1.06	.298		5.35 ± 23.70	23.00	0.47	.645
Conceptual level resp	−7.29 ± 14.27	40.71	−1.03	.308		3.75 ± 8.26	23.00	0.94	.357		15.66 ± 16.53†	23.00	1.96	.062
Post-test in 6 months
VABS composite	7.22 ± 12.67	27.01	1.17	.253		5.10 ± 7.03	13.38	1.56	.142		1.15 ± 14.06	13.38	0.18	.862
Communication	3.92 ± 11.09	24.59	0.73	.473		6.41 ± 4.47*	11.72	3.13	.009		7.43 ± 8.94†	11.72	1.82	.095
Daily living	8.12 ± 12.24	27.81	1.36	.185		4.92 ± 7.28	13.95	1.45	.169		−3.99 ± 14.57	13.95	−0.59	.566
Socialization	5.10 ± 15.35	25.95	0.68	.501		4.20 ± 7.36	12.78	1.24	.238		0.89 ± 14.71	12.78	0.13	.898
Motor	2.03 ± 10.12	25.59	0.41	.683		5.86 ± 5.14 *	12.07	2.48	.029		−3.15 ± 10.27	12.07	−0.67	.517

Note: The above effects were from a mixed-effect model DV _ti = γ₀ + γ₁ * Group _i + γ₂ * Time _ti + γ₃ * Group × Time _ti + u_i + r_ti, where Group was coded (-0.5, 0.5) for (control, CATS) and Time was (0, 1) for (pre-, post-test); see Results for coding rationales; * and † designate effects with p < .05 and .10, respectively.