Table 5.
Group scores |
Effect size (Hedge's g) and significance of pairwise comparisons |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Task | TD (n = 90) | DLD (n = 53) | DYS (n = 32) | DLD + DYS (n = 69) | TD vs. DLD | TD vs. DYS | TD vs. DLD + DYS | DLD vs. DYS | DLD vs. DLD + DYS | DYS vs. DLD + DYS |
Naming M (SD) |
1.59 (1.35) | 1.21 (1.32) | 0.69 (0.74) | 0.90 (1.07) | 0.284 | 0.737* | 0.558* | 0.457 | 0.262 | −0.215 |
Listening M (SD) |
5.56 (1.59) | 4.83 (1.87) | 4.09 (1.45) | 3.48 (1.80) | 0.430 | 0.945* | 1.235* | 0.429 | 0.737* | 0.359 |
Drawing M (SD) |
4.30 (1.96) | 3.53 (2.07) | 2.59 (1.74) | 2.29 (1.70) | 0.385 | 0.897* | 1.085* | 0.481 | 0.663* | 0.175 |
Describing
a
M (SD) |
9.93 (5.48) | 6.92 (3.64) | 7.16 (4.37) | 5.43 (4.26) | 0.616* | 0.531* | 0.902* | −0.061 | 0.372 | 0.403 |
Finding M (SD) |
5.98 (1.92) | 5.26 (2.34) | 4.19 (2.16) | 4.17 (2.22) | 0.345 | 0.902* | 0.881* | 0.470 | 0.480* | 0.009 |
Note. Pairwise comparisons used Tukey's honestly significant difference test to maintain an experiment-wise Type I error rate of .05 for each model. Asterisks indicate a comparison is significant at the .05 level. TD = typical development; DLD = developmental language disorder; DYS = dyslexia.
The describing task had a maximum possible accuracy score of 40. The maximum score achieved by participants in the sample was 28. All other word learning tasks had a maximum accuracy score of 8.