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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 Index

Values

Chi-Square χ2

815.90 (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