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Table 5 Fit indices and their acceptable thresholds in confirmatory factor analysis

From: Development and validation of a short and easy-to-use instrument for measuring health literacy: the Health Literacy Instrument for Adults (HELIA)

Fit IndexValues
Chi-Square χ2815.90 (P = 0.001)
Relative χ2 (χ2/df)1.68
RMSEA (Root Mean Square Error of Approximation)0.046
GFI (Goodness-of-fit index)0.87
SRMR (Standardized root mean square residual)0.053
NFI (Normed fit index)0.95
NNFI (Non-normed fit index)0.98
CFI (Comparative fit index)0.98