Table 9. Comparison of Consonant and Syllable Shape Variables in ASD, TDA and TDL Groups.
| Group | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ASD (n = 30) | TDA (n=11) | TDL (n = 23) | ||||||||
| M | SD | Range | M | SD | Range | M | SD | Range |
F (2,61) |
|
| Consonant Inventories | ||||||||||
| Different Consonants | 6.73 | 3.16 | 2-12 | 13.82 | 2.93 | 8-18 | 7.52 | 4.13 | 0-15 | 17.14* |
| Number of Early-8 Consonants | 5.50 | 2.13 | 1-8 | 7.36 | 0.92 | 5-8 | 4.57 | 2.39 | 0-8 | 6.69* |
| Number of Middle-8 Consonants | 2.27 | 136 | 0-5 | 4.18 | 1.78 | 1-8 | 1.83 | 1.44 | 0-4 | 10.01* |
| Number of Late-8 Consonants | 0.87 | 1.07 | 0-3 | 3.09 | 1.51 | 0-6 | 1.09 | 1.20 | 0-4 | 14.49* |
| Different Consonant Blends | 0.97 | 1.47 | 0-5 | 3.00 | 3.72 | 0-10 | - | - | - | - |
| Syllable Structure | ||||||||||
| Syllable Structure Level | 1.69 | 0.41 | 1.0-2.4 | 2.28 | 0.26 | 1.9-2.7 | 1.36 | .027 | 1.0-2.0 | 25.94* |
Note. Dash denotes variables not collected.
*
statistically significant p<.001, 1-tailed.
ASD = autism spectrum disorder. TDA = typically developing – age matched. TDL = typically developing – language matched.