Table 2 Coding and categorization of handwriting characteristics along variables observed during analysis
From: Forensic study on the effect of age and illness (Parkinsonism) on handwriting characteristics
S. No. | Handwriting characteristics | Coding | Coding along variables | Categorization of characteristics | |
|---|---|---|---|---|---|
Category 1 (0) | Category 2 (1) | ||||
1. | Line quality | Â | Â | Â | Â |
1.1 | Tremor | T | T_Bf/T_Af | 0 = Absent | 1 = Present |
1.2 | Retouching | Rt | Rt_Bf/Rt_Af | 0 = Absent | 1 = Present/Increase |
1.3 | Pen lifts | PL | PL_Bf/PL_Af | 0 = Absent | 1 = Present/Increase |
2. | Letter formation | LF | LF_Bf/LF_Af | 0 = Deterioration Absent | 1 = Deterioration Present |
3. | Abbreviation/simplification of letters/parts | AS | AS_Bf/AS_Af | 0 = Absent | 1 = Present |
4. | Initial and terminal strokes | InT | InT_Bf/InT_Af | 0 = Tapered and smooth | 1 = Tremulous and blunt |
5. | Connecting strokes | CS | CS_Bf/CS_Af | 0 = Normal and smooth | 1 = Defective |
6. | Speed | S | S_Bf/S_Af | 0 = Rapid | 1 = Decline |
7. | Overall size | OS | OS_Bf/OS_Af | 0 = Constant | 1 = Change (increase/decrease) |
8. | Alignment | Al | Al_Bf/Al_Af | 0 = H/Uh/Dh/Mi (combination of any of H, Uh, and Dh) | 1 = Change in alignment |
Variables selected | |||||
 1. Pre-condition (before onset of old age and Parkinsonism) | Bf | ||||
 2. Post-condition (after onset of old age and Parkinsonism) | Af | ||||