. Author manuscript; available in PMC: 2011 May 1.

Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2010 May;49(5):464–473. doi: 10.1097/00004583-201005000-00007

Table 1. Descriptive Statistics for All Predictor Variables.

	Standard
	Mean	Deviation	Range
Early Cognitive Ability (Age 6)	7.62	2.71	0-16
Early Social Competence (Age 6)	89.62	15.03	57-128
Placement Stability (Age 6 - 14)	.79	1.12	0-5
Frequency of Early Maltreatment (Birth - Age 6)
Physical Abuse	.57	.92	1-5
Sexual Abuse	.22	.52	1-3
Neglect	1.95	1.75	1-12
Frequency of Late Maltreatment (Age 6 - 14)
Physical Abuse	.57	.96	0-5
Sexual Abuse	.19	.57	0-4
Neglect	.81	1.63	0-10