Table 1.
Descriptive statistics on matching variables.
| Dyscalculia | Control | t[46] | p | Cohen's d | |
|---|---|---|---|---|---|
| Descriptive information | |||||
| N | 24 | 24 | – | – | – |
| Age (in years) | 21.96 (2.16) | 21.67 (2.20) | 0.46 | 0.65 | 0.13 |
| Mathematical abilities | |||||
| French Kit | 35.00 (7.97) | 54.50 (15.86) | 5.38 | <0.0001 | −1.55 |
| Tempo Test Arithmetic | 113 (17.46) | 148.75 (21.92) | 6.25 | <0.0001 | −1.80 |
| Arithmetic (WAIS)a | 7.50 (2.06) | 10.79 (2.21) | 5.34 | <0.0001 | −1.54 |
| Reading | |||||
| Z-score Reading | −0.20 (1.12) | 0.20 (0.62) | 1.49 | 0.14 | −0.44 |
| IQ measures | |||||
| Nonverbal– Matrix reasoning (WAIS) a | 9.08 (2.90) | 10.23 (3.01) | 1.32 | 0.19 | −0.39 |
| Verbal – Vocabulary (WAIS) a | 10.79 (2.99) | 12.08 (2.26) | 1.69 | 0.10 | −0.48 |
| Motor speed task | |||||
| Accuracy (% correct) | 96.88 (10.82) | 98.75 (2.21) | 0.83 | 0.41 | −0.24 |
| Reaction time (s) | 0.40 (0.08) | 0.36 (0.06) | −1.80 | 0.08 | 0.57 |
NoteStandard deviations are shown in parentheses.
a
Standardized score with M = 10 and SD = 3.