Table 6.

External Correlate Differences between Comparison, ADHD, SCT, and SCT+ADHD Groups

	1. Comparison		2. ADHD		3. SCT		4. SCT+ADHD
External Correlates	M	SE	M	SE	M	SE	M	SE	F	constracts	Eta2
Mothers’ Ratings
Oppositional defiant disorder	0.72a	0.02	2.16b	0.14	1.52c	0.18	2.18b	0.20	140**	1 < 3 < 2, 4	.20
Anxiety	0.50a	0.02	0.91b	0.07	1.37c	0.15	1.41c	0.14	68**	1 < 2 < 3, 4	.11
Depression	0.22a	0.01	0.84b	0.12	1.23c	0.17	1.77d	0.18	204**	1 < 2 < 3 < 4	.27
Shyness	1.87a	0.02	2.02a	0.09	2.39b	0.14	2.37b	0.14	14**	1, 2 < 3, 4	.03
Social impairment	1.79a	0.04	2.45b	0.15	2.73b	0.20	3.01b	0.22	17**	1 < 2, 3, 4	.03
Academic impairment	2.50a	0.05	3.71b	0.17	3.91b	0.18	4.59c	0.14	46**	1 < 2, 3 < 4	.08
Fathers’ Ratings
Oppositional defiant disorder	0.63a	0.02	2.13b	0.14	1.16c	0.13	2.15b	0.23	58**	1 < 3 < 2, 4	.25
Anxiety	0.49a	0.02	0.94b	0.10	1.17b	0.14	1.59c	0.24	23**	1 < 2, 3 < 4	.11
Depression	0.19a	0.01	0.70b	0.10	0.87b	0.11	1.51c	0.23	35**	1 < 2, 3 < 4	.24
Shyness	1.87a	0.02	2.00ab	0.09	2.18b	0.11	2.23b	0.18	4*	1 < 3, 4	.01
Social impairment	1.80a	0.05	2.51b	0.18	2.37b	0.25	2.63b	0.24	10**	1 < 2, 3, 4	.02
Academic impairment	2.37a	0.05	3.73b	0.14	3.81b	0.19	4.33b	0.17	77**	1 < 2, 3, 4	.08
Teachers’ Ratings
Oppositional defiant disorder	0.47a	0.03	2.57b	0.16	0.98c	0.17	1.20c	0.20	70**	1 < 3, 4 < 2	.25
Anxiety	0.43a	0.03	1.07b	0.11	1.24b	0.17	1.68b	0.22	27**	1 < 2, 3, 4	.12
Depression	0.34a	0.03	1.20b	0.12	2.20c	0.19	2.31c	0.17	85**	1 < 2 < 3, 4	.27
Shyness	1.68a	0.03	1.94a	0.10	2.68b	0.13	2.59b	0.13	35**	1, 2 < 3, 4	.09
Social rejection	1.66a	0.03	3.03b	0.15	2.70b	0.18	2.86b	0.21	50**	1 < 2, 3, 4	.14
Social impairment	1.92a	0.08	3.28b	0.15	3.38b	0.23	3.61b	0.23	50**	1 < 2, 3, 4	.07
Academic impairment	2.22a	0.06	3.54b	0.14	4.51c	0.08	5.11d	0.14	251**	1 < 2 < 3 < 4	.13

Note. Row means with different superscripts differ at p < .05 (Bonferroni correction with per-comparison p < .008). ADHD = attention-deficit/hyperactivity disorder. SCT = sluggish cognitive tempo.

^*p < .01

^**p < .0001.