Table 1.
Mean scores (M) and standard deviations (SD) for age, literacy, and cognitive measures in the three groups
| Typical | Dyslexia | SD | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n = 27 | n = 21 | n = 21 | ||||||||||
| M | SD | M | SD | M | SD | F | p | ES | ||||
| N (males) | 27 (15) | 21 (12) | 21 (15) | |||||||||
| Right handed | 24 | 18 | 19 | |||||||||
| Age in months | 113.00 | 3.61 | 111.67 | 3 | 4.53 | 115.71 | 2 | 7.58 | 3.13 | .050 | .087 | |
| Sentence reading percentile (SLS) | 55.48 | 2 | 17.51 | 10.76 | 1 , 3 | 8.71 | 54.62 | 2 | 15.56 | 66.17 | <.001 | .667 |
| Word reading percentile (SLRT‐II) | 49.33 | 2 | 13.52 | 9.43 | 1 , 3 | 6.57 | 48.48 | 2 | 19.72 | 56.25 | <.001 | .630 |
| Pseudoword reading percentile (SLRT‐II) | 54.63 | 2 | 14.76 | 10.81 | 1 , 3 | 7.32 | 50.05 | 2 | 23.09 | 48.90 | <.001 | .597 |
| Spelling percentile (DRT‐3) | 50.63 | 2 , 3 | 12.70 | 16.67 | 1 | 10.99 | 12.24 | 1 | 5.04 | 100.69 | <.001 | .753 |
| Nonverbal IQ | 103.93 | 9.93 | 98.90 | 9.91 | 100.19 | 9.37 | 1.75 | .183 | .050 | |||
| Vocabulary standard score (WISC‐IV) | 11.67 | 3.15 | 10.76 | 2.43 | 10.33 | 3.07 | 1.32 | .275 | .038 | |||
| Digit span standard score (WISC‐IV) | 10.59 | 2.86 | 11.43 | 2.60 | 9.81 | 2.20 | 2.04 | .138 | .058 | |||
| Symbol search standard score (WISC‐IV) | 11.44 | 1.80 | 11.38 | 2.09 | 11.76 | 2.28 | .21 | .808 | .006 | |||
| Phonological awareness (% correct) | .88 | 2,3 | .09 | .75 | 1 | .13 | .77 | 1 | .13 | 9.63 | <.001 | .226 |
| RAN digits/s | 1.99 | 2 | .31 | 1.60 | 1 , 3 | .29 | 1.92 | 2 | .49 | 6.56 | .003 | .170 |
| RAN objects/s | 1.08 | 2 | .19 | .93 | 1 | .13 | 1.06 | .17 | 4.48 | .015 | .123 | |
| ADHD questionnaire | .36 | 3 | .29 | .61 | .44 | .74 | 1 | .41 | 6.08 | .004 | .155 | |
Note. Subscripts indicate significant differences on post‐hoc analyses with Bonferroni correction for multiple comparisons, to: 1: Typical group, 2: Dyslexia group, 3: SD group. Effect sizes (ES) are calculated as partial eta‐squared.