Table 1 Arithmetic battery part 1: number comprehension and production - mean reaction time and mean error rate percentage
Subtest | Control | DD |
|---|---|---|
   Comparing digits | 14 sec (0%) | 20 sec** (7%) |
   Counting | 108 sec (0.3%) | 125 sec** (37.5%)** |
   Series progression (non-numerical) | 17 sec* (25%) | 14 sec (43%) |
   Series | 88 sec (1%) | 119 sec** (6%) |
   Comparing fractions | 42 sec (0%) | 68 sec** (7%)** |
   Verbal operation | 281 sec (11%) | 308 sec (23%) |