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Table 2 Fit statistics for the HADS subscale items (collapsed across sample size) for the Partial Credit 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 0.97 0.04 -0.17 0.25 0.98 0.04 -0.06 0.27
  ANX2 0.88 0.03 -1.87 0.23 0.87 0.03 -1.78 0.22
  ANX3 0.86 0.03 -2.41 0.26 0.90 0.04 -1.89 0.28
  ANX4 1.05 0.03 0.95 0.23 1.06 0.04 1.12 0.24
  ANX5 0.92 0.03 -0.93 0.20 0.91 0.04 -0.97 0.22
  ANX6 1.45 0.04 5.36 0.22 1.44 0.05 5.24 0.24
  ANX7 0.78 0.03 -3.61 0.28 0.74 0.03 -3.48 0.26
Underfit >1.30 1.00 >2 1.00 >1.30 1.00 >2 1.00  
Overfit <0.70 0 <-2 2.00 <0.70 0 <-2 1.00  
   Infit MNSQ SE Infit t SE Outfit MNSQ SE Outfit t SE
  DEP1 0.96 0.04 -0.74 0.20 0.88 0.04 -1.51 0.19
  DEP2 0.97 0.04 -0.03 0.25 0.98 0.08 0.17 0.23
  DEP3 0.86 0.04 -1.76 0.28 0.85 0.06 -0.93 0.29
  DEP4 1.17 0.03 2.54 0.21 1.11 0.03 1.71 0.19
  DEP5 1.12 0.06 1.26 0.27 1.20 0.11 1.06 0.21
  DEP6 0.73 0.03 -3.82 0.20 0.64 0.03 -3.20 0.19
  DEP7 1.17 0.06 1.41 0.25 1.68 0.19 2.74 0.19
Underfit >1.30 0 >2 1.00 >1.30 1.00 >2 1.00  
Overfit <0.70 0 <-2 1.00 <0.70 1.00 <-2 1.00