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Table 3 Comparison table of model fit indices criteria

From: Structural equation model of the spatial distribution of water engineering facilities along the Beijing-Hangzhou grand canal and its relationship with natural factors

Model

Acceptable standard

Model

Acceptable standard

CMIN

The smaller the better

IFI

 > 0.9

GFI

 > 0.9

CFI

 > 0.9

CMIN/DF

1 < CMIN/DF < 3

RFI

 > 0.9

RMSEA

 < 0.05

PNFI

 > 0.5

NFI

 > 0.9

ACI

 < Saturated model

 < Independence model