Table 4.
Group differences in Response Dispersion Index (RDI) for phenotypic groups for all participants
| Test | Unaffected | ASD-only | LI-only | ASD + LI | Omnibus ANOVA p value | Unaffected vs ASD-only p value | LI-only vs LI + ASD p value | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Mean (SD) | N | Mean (SD) | N | Mean (SD) | N | Mean (SD) | F | |||||
| CELF | Concepts and Following Directions | 68 | − .413 (.723) | 9 | − .096 (1.089) | 25 | .638 (1.050) | 21 | .651 (1.016) | 13.180 | < .001 | < .001 | 1.000 |
| Formulated Sentences | 331 | − .293 (.604) | 18 | .418 (1.295) | 46 | 1.006 (1.327) | 30 | 1.440 (1.386) | 69.426 | < .001 | 0.002 | 0.112 | |
| Recalling Sentences | 347 | − .331 (.568) | 20 | .483 (1.213) | 47 | .935 (1.040) | 32 | 1.913 (1.328) | 121.291 | < .001 | < .001 | < .001 | |
| Word Structure | 34 | − .548 (.610) | 6 | − .044 (.926) | 16 | .688 (1.062) | 11 | .719 (.951) | 11.608 | < .001 | 0.512 | 1.000 | |
| Word Definitions | 277 | − .247 (.596) | 9 | .081 (.656) | 23 | 1.434 (1.188) | 13 | 2.674 (1.611) | 101.749 | < .001 | 0.533 | < .001 | |
| Word Classes-Total | 310 | − .291 (.618) | 13 | .391 (.719) | 30 | 1.327 (1.120) | 21 | 2.163 (1.281) | 114.278 | < .001 | 0.005 | < .001 | |
| CASL | Ambiguous Sentences | 283 | − .224 (.825) | 10 | .744 (1.019) | 24 | 1.404 (.696) | 13 | 1.721 (.947) | 51.376 | < .001 | 0.002 | 0.684 |
| Inference | 68 | − .515 (.559) | 7 | .269 (1.047) | 12 | .849 (.794) | 19 | 1.210 (.929) | 37.411 | < .001 | 0.029 | 0.504 | |
| Pragmatic Judgment | 341 | − .298 (.691) | 22 | .829 (1.248) | 47 | .760 (1.212) | 31 | 1.532 (1.031) | 71.767 | < .001 | < .001 | < .001 | |
| Non-literal Language | 306 | − .300 (.593) | 14 | .558 (.966) | 35 | .977 (1.214) | 22 | 2.265 (1.165) | 111.968 | < .001 | < .001 | < .001 | |
| Meaning from Context | 280 | − .236 (.708) | 9 | .898 (1.220) | 25 | 1.151 (1.013) | 11 | 2.652 (1.199) | 74.799 | < .001 | < .001 | < .001 | |