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Table 4 CFA: Goodness-of-fit statistics for the Eth-PAID and Eth-PAID-5 models and standardized loadings

From: Psychometric evaluation of the problem areas in diabetes (PAID) scale among people with type 2 diabetes in Ethiopia: a tool validation study

Goodness-of-fit indices

Full form PAID

PAID-5

One factor [38]

Two factor [40]

Two factor [31]

Three factor [39]

Four factor [24]

One factor [35]

χ2

173.52

261.59

167.89

152.31

194.49

4.21

P

0.008

< 0.001

< 0.001

p < 0.001

< 0.001

0.122

df

131

100

102

102

118

2

CMIN/DF

1.325

1.365

1.646

1.493

1.648

2.106

GFI

0.925

0.930

0.913

0.923

0.904

0.992

RMR

0.051

0.050

0.059

0.053

0.059

0.059

RMSEA

0.040

0.043

0.057

0.050

0.057

0.075

CFI

0.951

0.942

0.907

0.926

0.889

0.975

NFI

0.837

0.821

0.802

0.813

0.769

0.958

Standardized loadings

0.095–0.703

0.064–0.714

0.216-0733

0.110–0.687

0.105–0.734

-1.255-0.022

  1. df, Degrees of freedom; CMIN/DF, Ratio of chi-square value to the degrees of freedom; GFI, Goodness-of-fit index; RMR, Root-mean-square residual; RMSEA, Root-mean-square error of approximation; CFI, Comparative-fit index; NFI, Normed fit index