Skip to main content

Table 6 Goodness-of-fit index model for Donors (Group A) and Non-donors (Group B)

From: Promoting the propensity for blood donation through the understanding of its determinants

Goodness-of-fit index Observed value Commonly used threshold
Χ2 (Chi-squared) 934.259* [55, 58,59,60]
degrees of freedom 760
p-value 0.000
Χ2 (Chi-squared) contribution group A 481.191 [67]
Χ2 (Chi-squared) contribution group B 453.068
SRMR (Standardized root mean square residual) 0.074 < 0.08 [60]
CFI (Comparative fit index) 0.907 ≥ 0.90 [57]
TLI (Tucker-Lewis index) 0.901 ≥ 0.90 [58]
RMSEA   <  0.05: minimal error
Root mean square error of approximation 0.042 0.05 ≤ RMSEA ≤0.08 acceptable
90% C.I. = (0.032–0.051)   ≥ 0.08 rejectable model [56]
WRMR (Weighted root mean square residual) 0.985 <  1 [69]
\