. Author manuscript; available in PMC: 2012 Aug 1.

Published in final edited form as: J Exp Child Psychol. 2011 Mar 21;109(4):412–429. doi: 10.1016/j.jecp.2011.02.009

Table 3.

Descriptive statistics of the study’s main variables

Study Main Variables	Time 1			Time 2
Study Main Variables	M	SD	Observed Range	M	SD	Observed Range
Risk Index	.75	1.02	0–4
SIPI-P Variable:
Hostile Attribution	2.63	1.44	0–4	2.66	1.36	0–4
Positive Response Generation	5.25	1.43	0–8	6.14	2.11	0–8
Positive Response Evaluation	29.30	5.34	14–36	31.24	4.88	15–36
Behavior Ratings:
Aggressive Behavior	2.45	3.24	0–10	2.71	3.76	0–11
Hyperactive Behavior	1.90	2.42	0–4	1.81	2.52	0–5
Withdrawn Behavior	1.25	1.66	0–8	1.20	1.79	0–8

Note. Variables used to create the risk index were collected only at Time 1