. Author manuscript; available in PMC: 2013 Jun 6.

Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2012 Apr 28;51(6):593–604.e4. doi: 10.1016/j.jaac.2012.03.005

Table 3. Reliability and Stability of Dimensions.


			Test-Retest and Stability (Clinically-Enriched Sample)
	Internal Reliability (Cronbach’s α)		1 week test-retest (n=31)						1-year stability (n=307)
	Clinically- Enriched	Epidemiologic	Test		Retest
Dimension			mean	sd	mean	sd	p ^a	r ^b	r ^c

Temper loss	.68	.80	1.82	1.51	1.80	1.63	.854	.92	.59
Noncompliance	.77	.63	2.76	1.53	2.64	1.47	.400	.87	.66
Aggression	.80	.76	.79	.67	.72	.75	.384	.82	.62
Low Concern	.60	.60	1.48	1.39	1.50	1.28	.850	.86	.55

Note: p-value for test-retest comparison (paired t-test) indicating no significant difference.

Pearson correlation coefficient between test and retest, p < .001 for each dimension.

Pearson correlation coefficient between baseline and 1-year, p < .001 for each dimension.