. Author manuscript; available in PMC: 2015 Dec 1.

Published in final edited form as: J Autism Dev Disord. 2015 Jun;45(6):1809–1824. doi: 10.1007/s10803-014-2340-2

Table 5.

Mean Number of Communicative Acts, Relevant Confidence Intervals and Pairwise Contrasts for Baseline Probes and Four Treatment Session Data Points

Treatment	Mean	Std. Error	95% Confidence Interval
Treatment	Mean	Std. Error	Lower Bound	Upper Bound
Baseline (Level 1)	18.519	2.078	14.330	22.707
Middle Kindergarten (Level 2)	25.505	1.460	22,562	28.448
End Kindergarten (Level 3)	29.479	1.768	25.915	33.042
Middle 1^st Grade (Level 4)	35.564	1.859	31.818	39.310
End 1^st Grade (Level 5)	37.508	2.079	33.317	41.698

Contrast	Mean Difference	Std. Error	95% Confidence Interval for Difference^b
Contrast	Mean Difference	Std. Error	Lower Bound	Upper Bound

2 vs 1	6.986	1.899^**	1.375	12.598
3 vs 1	10.960	2.252^***	4.305	17.615
3 vs. 2	3.974	1.127^*	.643	7.305
4 vs 1	17.046	2.080^***	10.899	23.192
4 vs 2	10.059	1.400^***	5.922	14.197
4 vs. 3	6.086	1.561^**	1.471	10.700
5 vs 1	18.989	2.615^***	11.260	26.718
5 vs 2	12.003	1.609^***	7.246	16.759
5 vs 3	8.029	1.839^**	2.593	13.465
5 vs 4	1.943	1.285(ns)	−1.856	5.743

Note: 1 = Baseline; 2 = Middle of kindergarten; 3 = Middle of 1^st; 4 = End of 1^st;

= p < .05;

^**

= p < .01;

^***

= p < .001;

Adjustment for multiple comparisons: Bonferonni