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Table 2 Fit-values for strict invariance models (SI) and partial invariance models (PI) among chronic conditions

From: Measurement invariance across chronic conditions: a systematic review and an empirical investigation of the Health Education Impact Questionnaire (heiQ™)

Scale Model Chi2(df) p CFI RMSEA
Positive and active engagement in life SI 212.21 (99) <0.001 0.868 0.079
PI 121.99 (68) <0.001 0.947 0.053
Health directed activites SI 85.72 (49) <0.001 0.975 0.052
PI 69.16 (47) 0.019 0.985 0.041
Skill and technique acquisition SI 62.966 (50) 0.103 0.986 0.030
PI 45.08 (47) 0.552 1.000 0.000
Constructive attitudes and approaches SI 164.04 (88) <0.001 0.940 0.063
PI 142.26 (72) <0.001 0.952 0.059
Self-monitoring and insight SI 434.91 (108) <0.001 0.696 0.104
PI 141.97 (92) <0.001 0.953 0.044
Health service Navigation SI 259.45 (76) <0.001 0.870 0.095
PI 160.20 (72) <0.001 0.941 0.066
Social integration and support SI 155.52 (76) <0.001 0.960 0.061
PI -- -- -- --
Emotional distress SI 255.75 (108) <0.001 0.944 0.070
  PI 208.14 (105) <0.001 0.961 0.051
  1. Notes: SI: Strict invariance model; PI: Partial invariance model (non-invariant parameters see Table 4).