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Table 1 Arithmetic battery part 1: number comprehension and production - mean reaction time and mean error rate percentage

From: Attentional networks in developmental dyscalculia

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%)
  1. Note. An asterisk indicates a significant difference between the performances of the developmental dyscalculia group and the control group. * p < 0.05, ** p < 0.01.