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

From: Development of the set of scales to assess the job satisfaction among physicians in Peru: validity and reliability assessment

          DIFFTEST
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
  1. X2-Robust = Chi squared Robust. gl = Degrees of freedom. CFI Comparative fit index. TLI Tucker-Lewis index. RMSEA Root mean square error of approximation. SRMR Standardized root mean square residual. ΔCFI Variation of the Comparative-Fit-Index. DIFFTEST ANOVA difference test. a The measurement invariance is not met between the groups