Table 4 Measurement invariance between groups for the three scales evaluated (n = 2137)

Scale

Group

Invariance

X²-Robust

df

CFI

RMSEA

SRMR

ΔCFI

Value

df

p

Satisfaction scale on general professional activity

Sex ^a

Configural

659.1

18

0.920

0.120

0.062

–

–

–

–

Thresholds

733.4

30

0.913

0.097

0.062

−0.008

23.1

12

0.027

Metrict

689.4

35

0.919

0.087

0.063

0.006

9.8

5

0.081

Scalar

790.4

40

0.907

0.087

0.063

−0.012

71.3

5

0.000

Civil status

Configural

655.0

18

0.920

0.119

0.062

–

–

–

–

Thresholds

716.1

30

0.913

0.096

0.062

−0.006

14.9

12

0.250

Metrict

670.6

35

0.920

0.085

0.063

0.006

10.5

5

0.063

Scalar

651.7

40

0.923

0.078

0.063

0.003

3.0

5

0.704

Work in other institution ^a

Configural

679.1

18

0.916

0.122

0.063

–

–

–

–

Thresholds

759.6

30

0.908

0.099

0.063

−0.009

27.9

12

0.006

Metrict

709.7

35

0.915

0.088

0.064

0.007

9.3

5

0.099

Scalar

970.3

40

0.882

0.097

0.064

−0.032

153.3

5

0.000

Work-related illness

Configural

632.2

18

0.920

0.117

0.062

–

–

–

–

Thresholds

687.6

30

0.914

0.094

0.062

−0.006

16.4

12

0.172

Metrict

646.5

35

0.920

0.084

0.063

0.006

13.5

5

0.019

Scalar

729.0

40

0.911

0.830

0.064

−0.009

49.0

5

0.000

Chronic disease

Configural

664.7

18

0.918

0.120

0.063

–

–

–

–

Thresholds

727.3

30

0.911

0.097

0.063

−0.006

19.5

12

0.077

Metrict

661.4

35

0.920

0.085

0.063

0.009

6.7

5

0.243

Scalar

651.3

40

0.922

0.078

0.063

0.002

9.4

5

0.095

Time working ^a

Configural

754.3

36

0.910

0.127

0.066

–

–

–

–

Thresholds

825.7

72

0.906

0.092

0.066

−0.004

45.7

36

0.130

Metrict

753.9

87

0.917

0.079

0.068

0.011

20.4

15

0.016

Scalar

814.1

102

0.911

0.075

0.068

−0.006

44.9

15

0.000

Health Services Management Satisfaction Scale

Sex

Configural

1446.1

40

0.977

0.119

0.042

–

–

–

–

Thresholds

1299.7

56

0.980

0.095

0.042

0.003

24.1

16

0.087

Metrict

1267.4

63

0.980

0.088

0.043

0.001

27.0

7

0.000

Scalar

1317.7

70

0.980

0.085

0.043

−0.001

50.8

7

0.000

Age

Configural

1542.4

80

0.976

0.121

0.044

–

–

–

–

Thresholds

1364.9

128

0.980

0.088

0.044

0.004

84.2

48

0.001

Metrict

1257.1

149

0.982

0.077

0.044

0.002

24.5

21

0.269

Scalar

1325.6

170

0.981

0.074

0.044

−0.001

51.2

21

0.000

Civil status

Configural

1445.7

40

0.977

0.119

0.042

–

–

–

–

Thresholds

1289.1

56

0.980

0.094

0.042

0.003

12.7

16

0.694

Metrict

1194.2

63

0.982

0.085

0.043

0.002

14.1

7

0.050

Scalar

1172.5

70

0.982

0.080

0.043

0.000

11.0

7

0.139

With specialty

Configural

1456.5

60

0.977

0.119

0.043

–

–

–

–

Thresholds

1199.4

92

0.982

0.085

0.043

0.005

36.5

32

0.267

Metrict

1111.8

106

0.984

0.076

0.043

0.002

15.5

14

0.343

Scalar

1168.4

120

0.983

0.073

0.043

− 0.001

41.8

14

0.000

Work in other institution

Configural

1483.5

40

0.976

0.121

0.044

–

–

–

–

Thresholds

1377.8

56

0.978

0.097

0.043

0.002

39.1

16

0.001

Metrict

1319.4

53

0.979

0.900

0.043

0.001

21.0

7

0.004

Scalar

1327.1

70

0.979

0.085

0.043

0.000

28.4

7

0.000

Work-related illness

Configural

1446.0

40

0.977

0.119

0.043

–

–

–

–

Thresholds

1289.1

56

0.980

0.094

0.043

0.003

16.2

16

0.442

Metrict

1154.5

53

0.982

0.083

0.043

0.002

9.9

7

0.197

Scalar

1141.3

70

0.982

0.078

0.043

0.000

14.5

7

0.043

Chronic disease

Configural

1448.5

40

0.977

0.119

0.043

–

–

–

–

Thresholds

1278.8

56

0.980

0.094

0.043

0.003

18.2

16

0.311

Metrict

1163.0

53

0.982

0.084

0.043

0.002

7.2

7

0.410

Scalar

1129.2

70

0.983

0.078

0.043

0.001

6.9

7

0.434

Time working

Configural

1480.5

80

0.978

0.119

0.043

–

–

–

–

Thresholds

1311.4

128

0.981

0.086

0.043

0.003

83.6

48

0.001

Metrict

1216.8

149

0.983

0.076

0.044

0.002

21.9

21

0.408

Scalar

1345.0

170

0.981

0.075

0.044

−0.002

79.3

21

0.000

Satisfaction scale on the working conditions of the health center

Sex

Configural

1880.1

86

0.946

0.092

0.055

–

–

–

–

Thresholds

1991.2

108

0.944

0.084

0.055

−0.003

30.0

22

0.119

Metrict

1905.0

117

0.946

0.078

0.055

0.003

31.7

9

0.000

Scalar

1979.6

126

0.945

0.077

0.055

−0.002

72.9

9

0.000

Age

Configural

1850.8

172

0.949

0.089

0.055

–

–

–

–

Thresholds

2030.1

238

0.945

0.078

0.055

−0.003

101.7

66

0.003

Metrict

1794.9

265

0.953

0.068

0.055

0.008

26.4

27

0.499

Scalar

1937.3

292

0.950

0.067

0.055

−0.004

89.8

27

0.000

Civil status

Configural

1784.8

86

0.949

0.089

0.054

–

–

–

–

Thresholds

1889.2

108

0.946

0.081

0.054

−0.002

26.4

22

0.237

Metrict

1741.4

117

0.951

0.075

0.054

0.005

8.1

9

0.523

Scalar

1733.6

126

0.952

0.072

0.054

0.001

23.5

9

0.005

With specialty

Configural

1829.2

129

0.949

0.089

0.054

–

–

–

–

Thresholds

1922.9

173

0.947

0.078

0.054

−0.001

47.8

44

0.322

Metrict

1763.5

191

0.953

0.070

0.055

0.005

32.5

18

0.019

Scalar

2047.4

209

0.945

0.073

0.055

−0.008

138.7

18

0.000

Work in other institution

Configural

1775.6

86

0.949

0.089

0.053

–

–

–

–

Thresholds

1886.9

108

0.946

0.081

0.053

−0.003

31.0

22

0.097

Metrict

1778.1

117

0.950

0.076

0.054

0.004

18.2

9

0.033

Scalar

1779.8

126

0.950

0.073

0.054

0.000

27.1

9

0.001

Work-related illness

Configural

1781.1

86

0.949

0.089

0.054

–

–

–

–

Thresholds

1889.6

108

0.947

0.081

0.054

−0.003

35.2

22

0.035

Metrict

1732.0

117

0.952

0.075

0.055

0.005

12.7

9

0.175

Scalar

1739.8

126

0.952

0.072

0.055

0.000

28.6

9

0.001

Chronic disease

Configural

1768.3

86

0.950

0.089

0.053

–

–

–

–

Thresholds

1851.7

108

0.948

0.081

0.053

−0.002

22.3

22

0.444

Metrict

1723.9

117

0.952

0.074

0.053

0.004

16.0

9

0.067

Scalar

1708.6

126

0.953

0.071

0.054

0.001

18.9

9

0.026

Time working

Configural

1894.6

172

0.949

0.090

0.056

–

–

–

–

Thresholds

2063.4

238

0.946

0.079

0.056

−0.003

99.3

66

0.005

Metrict

1934.3

265

0.950

0.071

0.057

0.005

54.5

27

0.001

Scalar

2123.5

292

0.946

0.071

0.057

−0.005

120.9

27

0.000