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Table 4 The fit statistics and item locations for the GHQ-8

From: A Rasch and confirmatory factor analysis of the General Health Questionnaire (GHQ) - 12

Social Dysfunction Item Location SE Infit
MNSQ
Infit
ZSTD
Outfit
MNSQ
Outfit
ZSTD
  GHQ4 0.46 0.05 1.09 2.37 1.05 0.69
  GHQ7 -1.32 0.04 0.91 -3.01 0.83 -4.95
  GHQ8 0.70 0.05 0.97 -0.84 0.82 -2.96
  GHQ12 0.16 0.05 0.90 -3.01 0.78 -4.80
Anxiety/Depression        
  GHQ6 -0.49 0.05 1.19 5.98 1.18 4.59
  GHQ9 -1.36 0.04 0.91 -3.19 0.91 -3.09
  GHQ10 -0.15 0.04 0.83 -6.33 0.82 -6.22
  GHQ11 1.99 0.05 0.96 -0.67 2.38 3.72