. Author manuscript; available in PMC: 2016 Dec 1.

Published in final edited form as: Assessment. 2015 Jul 1;23(6):655–671. doi: 10.1177/1073191115591595

Table 2.

Fit Statistics of Confirmatory Factor Models for Parent and Teacher Ratings of ADHD.

	χ ²	df	CFI	TLI	RMSEA
Parent ratings
1 Factor	630.05	36	.92	.97	.18
2 Factor	392.51	58	.96	.99	.10
2 Factor bifactor	261.91	66	.97	.99	.08
Teacher ratings
1 Factor	510.60	21	.91	.96	.24
2 Factor	381.48	38	.94	.98	.15
2 Factor bifactor	220.12	44	.98	.99	.08

Note. ADHD = attention-deficit/hyperactivity disorder; CFI = comparative fit index; TLI = Tucker–Lewis index; RMSEA = root-mean-square error of approximation.