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Table 3 The process of model fitting and the goodness of fit index of structural models

From: Relationship between psychosocial working conditions, stress perception, and needle-stick injury among healthcare workers in Shanghai

dimensions/models

 

x2

df

x2/ df

AGFI

NNFI

IFI

RMSEA

M1.

Original

821.74

9

91.30

0.689

0.670

0.802

0.215

Modified

123.83

5

24.77

0.912

0.913

0.971

0.063

M2.

Original

2852.55

35

81.50

0.583

0.577

0.671

0.203

Modified

136.62

27

5.06

0.972

0.979

0.987

0.046

M3.

Original

1441.80

63

22.89

0.840

0.864

0.890

0.106

Modified

428.41

57

7.52

0.946

0.960

0.971

0.058

M4.

Original

1155.22

42

27.51

0.824

0.810

0.855

0.116

Modified

430.91

38

11.34

0.932

0.926

0.949

0.073

M5.

Original

4211.74

117

36.00

0.677

0.689

0.733

0.134

Modified

742.31

105

7.07

0.936

0.946

0.958

0.056

  1. Note: M1: the fitting model of psychosocial working conditions only; M2: the fitting model of total stress perception measurement; M3: the model includes psychosocial working conditions, dimension of helplessness and needle-stick; M4: the model includes psychosocial working conditions, dimension of low self-efficacy and needle-stick; M5: the model includes psychosocial working conditions, stress perception and needle-stick