TABLE 4.
Mean CCC–2 summary scores by diagnostic group with adjusted means (covarying for ELAE on the VABS/II) presented for the clinical groups.
| Study group | WS (n = 21) | ASD (n = 21)a | TYP (n = 19) |
|---|---|---|---|
| GCC | |||
| M | 32.3 | 26.8 | 87.3 |
| SD | 12.1 | 9.5 | 13.4 |
| Range | 8–28 | 10–46 | 57–116 |
| Adjusted M | 32.6 | 26.5 | NA |
| SIDC | |||
| M | −0.6 | −2.7 | NA for children with GCC > 54 |
| SD | 8.0 | 7.1 | |
| Range | −17–15 | −22–10 | |
| Adjusted M | −0.21 | −3.03 | |
| PRAG | |||
| M | 15.8 | 11.7 | 43.6 |
| SD | 5.0 | 4.5 | 7.9 |
| Range | 8–28 | 3–20 | 32–60 |
| Adjusted M | 16.4 | 11.1 | NA |
Note. GCC = General Communication Composite, an index of overall communication skills; GCC scores above 54 are considered within normal limits, while scores below 55 are considered indicative of some type of language impairment SIDC = Social Interaction Deviance Composite, an indicator of relative difficulties with pragmatics or structural language; positive SIDC values suggest more structural language impairment, and negative SIDC values indicate more pragmatic language impairment in children with a language impairment (GCC scores below 55). PRAG = pragmatic language composite, the sum of the scaled score values for 4 pragmatic language subscales; PRAG scores above 24 are indicative of children with typical pragmatic language functioning, scores between 17 and 24 indicate borderline typical pragmatic language functioning, and scores below 17 indicate impaired pragmatic language functioning.
One ASD participant’s CCC–2 data were removed as a function of being an extreme outlier.