Table 6.
Mean scores and standard deviations of five dependent measures, at second and sixth grade, along with outcomes of t tests and Cohen's ds.
| NH (29) |
CI (33) |
||||||
|---|---|---|---|---|---|---|---|
| M | SD | M | SD | t | p | Cohen's d | |
| Final consonant choice, 2nd | 71.1 | 17.9 | 40.5 | 26.2 | 5.25 | < .001 | 1.37 |
| Final consonant choice, 6th | 87.9 | 7.7 | 67.7 | 19.8 | 5.16 | < .001 | 1.34 |
| Word reading, 2nd | 41.8 | 6.4 | 37.4 | 6.3 | 2.68 | .010 | 0.69 |
| Word reading, 6th | 52.9 | 6.0 | 46.9 | 8.4 | 3.17 | .002 | 0.74 |
| Verbal working memory, 2nd | 55.0 | 18.2 | 44.0 | 13.7 | 2.69 | .009 | 0.68 |
| Verbal working memory, 6th | 62.6 | 17.1 | 48.5 | 16.9 | 3.25 | .002 | 0.83 |
| Expressive vocabulary, 2nd | 94.4 | 12.7 | 82.3 | 16.9 | 3.15 | .003 | 0.81 |
| Expressive vocabulary, 6th | 133.6 | 14.0 | 125.4 | 16.0 | 2.13 | .038 | 0.55 |
| Mean length of utterance, 2nd | 5.8 | 1.4 | 5.8 | 1.2 | 0.065 | NS | 0.02 |
| Mean length of utterance, 6th | 9.9 | 1.0 | 9.2 | 1.0 | 2.42 | .018 | 0.62 |
Note. Degrees of freedom = 60 for all tests. NH = normal hearing; CI = cochlear implant; NS = not significant.