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. 2021 Sep 30;23(9):e27122. doi: 10.2196/27122

Table 5.

Research model fit.

Model fit indices Criteria Research model fit values
Chi-square value The smaller the better 692.543
Degrees of freedom The larger the better 354
Normed chi-square value (χ2/df) 1<χ2/df<3 1.956
Root mean square error of approximation <0.08 0.056
Standardized root mean square residual <0.08 0.0317
Comparative fit index >0.9 0.968
Goodness of fit index >0.85 0.859
Adjusted goodness of fit index >0.8 0.827