. Author manuscript; available in PMC: 2015 Jan 27.

Published in final edited form as: Int J Behav Dev. 2012 Jul;36(4):279–292. doi: 10.1177/0165025412444077

Table 3.

Confirmatory factor analysis fit statistics for ADHD symptom ratings

	Chi-Square	df	CFI	RMSEA
Self-rated symptoms
One-factor model	399.37^**	59	.89	.12
Two-factor model	279.96^**	66	.93	.09
Three-factor model	238.83^**	67	.94	.08
Second-order factor model	319.76^**	132	.93	.06
Bifactor model	223.1^**	117	.96	.05
Peer-rated symptoms
One-factor model	531.44^**	135	.78	.10
Two-factor model	361^**	134	.87	.08
Three-factor model	336.43^**	132	.89	.07
Second-order factor model would not converge
Bifactor model	195.92^**	117	.96	.05
‘‘Or’’ algorithm symptoms
One-factor model	486.32^**	135	.85	.10
Two-factor model	326.35^**	134	.92	.07
Three-factor model	298.3^**	132	.93	.07
Second-order factor model would not converge
Bifactor model	173.72^**	117	.98	.04

Note.

^**

p < .01.