Evolutionary Attitudes and Literacy Survey (EALS): Development and Validation of a Short Form

Table 2 Fit indices for EALS and EALS-SF invariance testing

Model	χ ²	df	p	RMSEA	RMSEA 90% CI	TLI	CFI	Constraint tenable
Null Model	8242.901	240	<.001	–	–	–	–	–
Configural Invariance	580.451	179	<.001	0.071	0.064–0.077	0.933	0.950	–
Weak Invariance	605.494	191	<.001	0.070	0.063–0.076	0.935	0.948	Yes
Strong Invariance	658.191	200	<.001	0.071	0.065–0.078	0.931	0.943	Yes

Each nested model contains its constraints, plus the constraints of all previous, tenable models. Invariance was evaluated with RMSEA Model Test and examination of the Comparative Fit Index (CFI) and the Tucker-Lewis Index (TLI) For example, if the RMSEA from the weak factorial model was within the 90% RMSEA confidence interval (RMSEA 90% CI) for the configural invariant model, and the change in CFI was less than .01 (see Cheung & Rensvold, 2002), and the change in TLI was less than .01, then the constraint was deemed tenable invariance was established

ISSN: 1936-6434