Table 2. The Cronbach α for the scale when individual item indicated is removed.
Type of Parameter | Item | Cronbach's Alpha if Item Deleted |
Skin and oedema signs | Degree of inflammation of skin | .822 |
Number of raised and/or inflamed lesions | .824 | |
Peripheral oedema due to reaction | .814 | |
Nerve symptom | Nerve pain and/or paraesthesia | .826 |
Nerve sign | Nerve tenderness (worst affected nerve only) | .825 |
Systemic sign | Fever (°C) | .820 |
Sensory function of nerve | Right trigeminal | .821 |
Left trigeminal | .821 | |
Right ulnar | .799 | |
Left ulnar | .789 | |
Right median | .795 | |
Left median | .803 | |
Right posterior tibial | .797 | |
Left posterior tibial | .800 | |
Motor function of nerve | Right facial | .817 |
Left facial | .816 | |
Right ulnar | .810 | |
Left ulnar | .807 | |
Right median | .809 | |
Left median | .808 | |
Right radial | .821 | |
Left radial | .821 | |
Right lateral popliteal | .809 | |
Left lateral popliteal | .816 |
An increase in α indicates that removal of the item is improving agreement of the remaining scale items. (The overall α for the original 24 item scale was 0.819.)