Table 2 Group differences in Response Dispersion Index (RDI) for ASD+ and ASD− for participants ≤ 21 years old
|  | ASD+ | ASD− | ASD+ vs ASD− | ||||
|---|---|---|---|---|---|---|---|
N | Mean (SD) | N | Mean (SD) | t | p value | ||
CELF | Concepts and Following Directions | 17 | .456 (1.170) | 81 | − .096 (.941) | − 2.103 | 0.038 |
Formulated Sentences | 38 | .409 (1.206) | 124 | − .125 (.897) | − 2.527 | 0.015 | |
Recalling Sentences | 40 | .691 (1.244) | 128 | − .216 (.802) | − 4.340 | < 0.001 | |
Word Structure | 13 | .549 (1.020) | 40 | − .178 (.938) | − 2.377 | 0.021 | |
Word Definitions | 16 | .468 (1.307) | 46 | − .163 (.826) | − 1.809 | 0.086 | |
Word Classes–Total | 26 | .527 (1.185) | 86 | − .159 (.884) | − 3.193 | 0.002 | |
CASL | Ambiguous Sentences | 14 | .582 (1.067) | 60 | − .136 (.942) | − 2.505 | 0.015 |
Inference | 17 | .889 (1.189) | 74 | − .204 (.835) | − 3.594 | 0.002 | |
Pragmatic Judgment | 35 | .550 (1.058) | 122 | − .158 (.928) | − 3.850 | < 0.001 | |
Non-literal Language | 27 | .579 (1.163) | 94 | − .166 (.887) | − 3.085 | 0.004 | |
Meaning from Context | 12 | .446 (1.092) | 60 | − .089 (.966) | − 1.715 | 0.091 | |
|  | Average RDI all subtests | 44 | .775 (1.058) | 133 | − .063 (.763) | − 4.850 | < 0.001 |