. Author manuscript; available in PMC: 2010 Feb 10.

Published in final edited form as: J Abnorm Child Psychol. 2009 Apr;37(3):337. doi: 10.1007/s10802-008-9255-3

Table 1.

Descriptive Statistics for ADHD, Control, and Total Groups of Children

	ADHD (n=92)	Control (n=87)	Total (n=179)
	M(SD)	M(SD)	M(SD)
N (%) Males	78 (65.5)	35 (58.3)	113 (63.1)
N (%) Ethnic Minority	34 (28.5)	17 (28.3)	51 (28.4)
Child age in years	9.50 (1.14)	9.44 (1.23)	9.47 (1.18)
SES	35.57 (14.41)	37.90 (15.46)	36.73 (14.94)
Neuroticism	4.55 (1.09)	3.68 (0.93)	4.26 (1.11)^**
Agreeableness	5.65 (1.24)	6.60 (1.06)	6.11 (1.25)^**
Conscientiousness	3.95 (0.95)	5.51 (1.52)	4.71 (1.48)^**
Reactive Control	3.94 (1.03)	4.77 (0.97)	4.34 (1.08)^**
Resiliency	5.62 (0.89)	6.36 (0.83)	5.73 (1.02)^**
Negative Emotionality	4.73 (1.23)	3.43 (0.90)	4.30 (1.28)^**
Response Inhibition (SSRT)	426 (160.98)	358.18 (134.24)	392.29 (151.71)^**
Set-Shifting (Trails B Time)	68.59 (63.51)	58.02 (54.30)	63.52 (59.33)
Teacher-rated Cognitive Problems (T-score)	59.42 (10.33)	49.92 (8.9)	54.89 (10.76)^**
Teacher-rated Hyperactivity (T-score)	63.14 (11.5)	51.07 (9.52)	57.32 (12.17)^**

Significant differences between ADHD and control groups, measured by t-tests and chi-squares, indicated under total column. “Cognitive problems” is the label on the Conners Scale for DSM-IV ADHD symptoms of inattention.

p<0.05;

^**

p<0.01.