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Table 4 Fit indices of the confirmatory factor analysis of the FI(HPV)VUBYAS (N = 200)

From: Designing and psychometric assessment of the scale of factors influencing HPV vaccine uptake behaviors in young adults

Indices

Χ2

df

P-value

CMIN/DF

RMSEA

PNFI

PCFI

TLI

IFI

CFI

First-order after structure modification

1555.056

644

0.000

2.415

0.084

0.615

0.709

0.953

0.977

0.974

  1. Fitness indexes: PNFI, PCFI (> 0.5); TLI, IFI, CFI (> 0.9), RMSEA (< 0.08), CMIN/DF (< 3 good, < 5 acceptable)
  2. CFI comparative fit index, CMIN/DF Minimum discrepancy function divided by degrees of freedom, df, degree of freedom, IFI incremental fit index, PCFI parsimonious comparative fit index, PNFI parsimonious normed fit index, RMSEA root mean square error of approximation, TLI Tuker–Lewis index