Psychometric properties of the Shirom-Melamed Burnout Measure (SMBM) among adolescents: results from three cross-sectional studies

Table 4 Goodness-of-fit indices for testing measurement invariance across samples

	First-order model					Second-order model
	CFI	TLI	NFI	RMSEA	Δχ²	CFI	TLI	NFI	RMSEA	Δχ²
Default model	.97	.96	.93	.04 (.03, .04)		.97	.96	.93	.04 (.03, .04)
+ Factor loadings set equally across samples	.96	.96	.93	.04 (.03, .04)	p = .212	.96	.96	.93	.04 (.03, .04)	p = .212
+ Factor loadings and inter-factor correlations (first-order model) or regression weights (second-order model) set equally across samples	.96	.96	.93	.04 (.03, .04)	p = .363	.96	.96	.93	.04 (.03, .04)	p = .170

CFI Comparative fit index, TLI Tucker Lewis index, NFI Normed fit index, RMSEA Root mean square error of approximation

ISSN: 1471-244X