. Author manuscript; available in PMC: 2011 Apr 8.

Published in final edited form as: J Intellect Disabil Res. 2005 Sep;49(Pt 9):657–671. doi: 10.1111/j.1365-2788.2005.00699.x

Table 2.

Mothers’ Child Behaviour Checklist (CBCL) score means by syndrome group at age 3. Analyses were run as univariate analyses of covariance, covarying for mother’s education.

CBCL scale (# of items)	TD	UDD	DS	Autism	CP	F-value for syndrome	Alpha
Total T (99)	50.2^a (9.3)	57.0^b ^c (10.9)	49.4^a ^b (11.0)	62.3^c (10.8)	63.0^c (7.9)	8.06^***	.95
Externalizing T (24)	50.1^a (9.9)	55.7^a ^b (11.1)	49.4^a ^b (9.3)	60.2^b (12.6)	60.0^a ^b (5.7)	4.96^**	.91
Internalizing T (36)	48.5^a (9.9)	56.2^b ^c (10.8)	46.5^a ^b (12.5)	59.8^c (10.6)	61.6^c (10.2)	7.27^***	.88
Aggressive behaviour (19)	10.7^a (6.5)	13.8^a (7.8)	8.5^a (5.7)	15.6^a (8.4)	15.5^a (5.0)	3.00^*	.89
Anxious/Depressed (8)	2.3^a (2.0)	3.7^a ^b (2.6)	1.4^a (1.2)	2.9^a ^b (3.2)	4.9^b (2.6)	4.28^**	.68
Attention problems (5)	2.2^a (1.9)	3.9^b (2.5)	3.8^a ^b (2.2)	5.2^b (2.6)	5.6^b (1.6)	12.97^***	.73
Emotionally reactive (9)	2.2^a (1.9)	3.1^a ^b (2.9)	1.6^a (1.6)	4.9^b ^c (4.7)	5.6^c (2.7)	6.85^***	.71
Sleep problems (7)	3.6(2.8)	3.5(3.1)	2.4(2.9)	3.9(3.8)	4.4(2.6)	.71	.76
Somatic Complaints (11)	1.6^a (1.9)	2.9^b (2.5)	1.7^a ^b (2.9)	3.2^a ^b (2.7)	3.2^a ^b (3.3)	3.67^**	.66
Withdrawn (8)	1.6^a (1.8)	3.4^b (2.5)	2.8^a ^b (3.3)	5.2^b (3.1)	3.9^b (2.6)	12.39^***	.74

Means designated by different letters (a, b, c) are significantly different, P<0.05.

P<0.05,

^**

P<0.01,

^***

P<0.001.

TD: typically developing; UDD: undifferentiated developmental delays; DS = Down syndrome; CP = cerebral palsy.