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

Published in final edited form as: J Learn Disabil. 2013 Jul 12;48(3):227–238. doi: 10.1177/0022219413495568

Table 1.

Model Fit Statistics of Unidimensional and Two-Factor Models of the Revised Get Ready to Read!

Model	χ ²	df	CFI	TLI	RMSEA
Unidimensional	962.32	275	.940	.934	.043
Theoretical 2-factor	859.71	274	.949	.944	.040
Empirical 2-factor	859.63	274	.953	.949	.038

Note. N = 1,351. CFI = comparative fit index; RMSEA = root mean square error of approximation; TLI = Tucker–Lewis index.