Skip to main content

Table 3 Rasch analysis results of ArmA-TH passive and active function sub-scale after rescoring

From: Investigating psychometric properties of the arm activity measure – Thai version (ArmA-TH) sub‐scales using the Rasch model

Section Aa Passive function sub-scale Measure Infit Outfit
1.   Cleaning palm 0.28 0.98 0.94
2.   Cutting fingernails -1.59 0.87 0.89
3.   Putting on a glove -1.11 0.84 0.79
4.   Cleaning armpit 0.02 0.90 0.84
5.   Putting arm through a sleeve 0.42 1.21 1.27
6.   Put on a splint 1.68 1.11 0.87
7.   Positioning arm on a cushion or support in sitting 0.30 1.20 1.37
Section Bb Active function sub-scale
 1.   Fasten buttons on clothing -0.35 0.84 0.92
 2.   Pick up a glass, bottle, or can 1.18 1.58 0.92
 3.   Use a key to unlock the door -0.01 0.71 0.91
 4.   Write on paper -0.58 1.18 1.25
 5.   Open a previously opened jar -0.38 0.76 0.88
 6.   Eat with a knife and fork 0.30 0.95 1.11
 7.   Hold an object still while using unaffected hand -1.61 1.50 1.15
 8.   Difficulty with balance when walking due to your arm -0.79 1.67 1.05
 9.    Dial a number on home phone -0.15 0.78 1.01
 10. Tuck in your shirt -0.42 0.96 1.04
 11. Comb or brush your hair 0.96 0.32 0.67
 12. Brush your teeth 0.93 1.30 0.75
 13. Drink from a cup or mug 0.92 0.53 0.80
  1. aAsks about ‘caring’ for your affected arm either yourself with your unaffected arm or by a carer or a combination of both of these. This section does not ask about using your affected arm to complete any of the tasks. bAsks what you can do with your affected arm or using both arms.