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. 2021 Jan 20;23(1):e21834. doi: 10.2196/21834

Table 4.

Research model fit.

Fit index Value (χ2/df) GFIa AGFIb RMSEAc CFId NFIe TLIf IFIg
Recommended value <5 >0.9 >0.9 <0.05 >0.9 >0.9 >0.9 >0.9
Value in model 1 3.1 (1111.9/363) 0.917 0.900 0.047 0.932 0.903 0.924 0.933
Value in model 2 3.2 (1002.4/310) 0.919 0.901 0.049 0.934 0.907 0.925 0.934

aGFI: goodness of fit index.

bAGFI: adjusted goodness of fit index.

cRMSEA: root mean square error of approximation.

dCFI: comparative fit index.

eNFI: normed fit index.

fTLI: Tucker-Lewis index.

gIFI: incremental fit index.