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Table 1 Fit statistics for the HADS subscale items (collapsed across sample size) for the Rating Scale Model

From: Rasch fit statistics and sample size considerations for polytomous data

   Infit MNSQ SE Infit t SE Outfit MNSQ SE Outfit t SE
  ANX1 0.92 0.04 -1.12 0.26 0.93 0.04 -1.07 0.26
  ANX2 1.02 0.02 0.11 0.17 0.98 0.02 -0.40 0.18
  ANX3 0.95 0.04 -1.06 0.25 0.95 0.04 -1.11 0.27
  ANX4 0.90 0.03 -1.38 0.28 0.97 0.04 -0.13 0.28
  ANX5 0.87 0.03 -1.71 0.23 0.88 0.04 -1.37 0.22
  ANX6 1.46 0.03 5.92 0.20 1.46 0.03 5.97 0.2
  ANX7 0.80 0.03 -3.49 0.33 0.76 0.03 -3.71 0.28
Underfit >1.30 1.00 >2 1.00 >1.30 1.00 >2 1.00  
Overfit <0.70 0 <-2 1.00 <0.70 0 <-2 1.00  
   Infit MNSQ SE Infit t SE Outfit MNSQ SE Outfit t SE
  DEP1 1.02 0.04 -0.18 0.25 0.91 0.03 -1.56 0.21
  DEP2 1.09 0.06 1.35 0.31 0.97 0.07 0.01 0.25
  DEP3 0.86 0.06 -1.82 0.33 0.81 0.05 -1.72 0.27
  DEP4 1.03 0.03 0.51 0.22 1.10 0.04 1.65 0.32
  DEP5 1.34 0.07 3.48 0.29 1.18 0.09 1.17 0.22
  DEP6 0.77 0.03 -3.06 0.23 0.68 0.03 -3.83 0.19
  DEP7 1.37 0.07 3.78 0.29 1.33 0.07 2.24 0.18
Underfit >1.30 2.00 >2 2.00 >1.30 1.00 >2 1.00  
Overfit <0.70 0 <-2 1.00 <0.70 1.00 <-2 1.00