Validity and reliability of the WHOQOL-BREF in a pregnant population

Table 4 Structural validity: Fit indices of models tested in Confirmatory factor analysis (DWLS)

Fit indices	Original domains Basic model	Original domains Correlated residuals^a	Proposed domains Basic model	Proposed domains Correlated residuals^a
Chi Square (χ²)	1319.464^***	1028.192^***	942.682^***	667.919^***
df	246	243	246	242
Normed Chi Square (χ²/df)	5.364	4.231	3.832	2.760
CFI	0.964	0.973	0.976	0.986
RMSEA (90% CI)	0.092 (0.087–0.097)	0.079 (0.074–0.084)	0.074 (0.069–0.079)	0.059 (0.053–0.064)
SRMR	0.085	0.078	0.073	0.064

Note. df = degrees of freedom; CFI = Comparative Fit Index; RMSEA = Root Mean Square Error of Approximation; CI = Confidence Interval; SRMR = Standardized Root Mean Square Residual; ^aThe residuals of items 5–6, 24–25, and 3–15 were allowed to correlate; ^bThe residuals of items 5–6, 3–15, 24–25, and 3–4 were allowed to correlate; ^*** p < .001.

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