Table 2.
Literacy outcomes for the whole SSD group (z‐scores standardised relative to the control group mean)
| Mean (min–max) | SD | t | df | p | |
|---|---|---|---|---|---|
| Phoneme Awareness T3 | −1.08 (−3.73 to 1.27) | 1.28 | 5.60a | 102.50 | .000 |
| Word Reading T3 | −0.84 (−2.26 to 1.43) | 0.93 | 4.98 | 129 | .000 |
| Spelling T3 | −1.08 (−2.10 to 2.03) | 1.01 | 6.14 | 129 | .000 |
| Word Reading T5 | −0.80 (−4.30 to 1.79) | 1.27 | 4.09 | 124 | .000 |
| Spelling T5 | −0.66 (−4.65 to 2.96) | 1.38 | 3.13 | 125 | .002 |
| Reading Comprehension T5 | −0.82 (−3.29 to 0.83) | 0.95 | 4.58 | 119 | .000 |
aEqual variances not assumed.