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Table 4 Rasch Analysis of the original 24-item final version including the 5-point Likert response scale

From: Development and validation of the Brazilian version of the Attitudes to Aging Questionnaire (AAQ): An example of merging classical psychometric theory and the Rasch measurement model

Content        DIF Analyses
  Item Model χ 2 Fit (df) P value Item χ 2 Fit Item Residual Rev Threshold Gender Age Depression
Subscale I   77.06 (40) .00003       
  7    3.08 1.01    
  10    12.77 -0.06     
  14    15.27 3.11     
  17    5.52 -0.60     
PSI = .869 21    21.12 3.49     
  24    11.74 -1.25    
  32    10.70 1.61     
  34    6.38 -1.07    
Subscale II   109.4 (48) .00001       
  12    10.57 -0.41    Uniform
  13    6.57 .58    
PSI = .807 16    4.65 .02    
  19    42.61 4.96    Uniform
  20    11.79 -1.04     
  22    17.47 3.76    
  36    10.40 .66     
  37    5.34 .32    
Subscale III   59.06 (48) .131       
  2    1.94 .54    
  4    10.11 -0.31    
PSI = .745 8    3.17 1.24    
  9    19.17 -2.05    
  15    9.01 3.43     
  25    1.34 .37     
  30    6.73 1.58    
  33    7.55 -1.73    
  1. In bold, item-residuals > 2.5 or item χ2 fit with p < .05 corrected for Bonferroni Multiple Comparisons