Table 1.
Comparison of demographics and SCQ, CDI 2, CDI 3, and MSEL scores in the two syntactic conditions.
| Measure | Transitive | Intransitive | Statistic | p |
|---|---|---|---|---|
| Age | M = 3;3 (years;months) | M = 3;3 (years;months) | t = −0.08 | p = .93, ns |
| SD = 8 months | SD = 7 months | |||
| n = 17 | n = 17 | |||
| Proportion male | P = .94 | P = .82 | z = 1.06 | p = .28, ns |
| n = 17 | n = 17 | |||
| SCQ raw scores | M = 16.13 | M = 16.06 | t = 0.03 | p = .97, ns |
| SD = 6.1 | SD = 6.1 | |||
| n = 16 | n = 16 | |||
| CDI 2 raw scores | M = 52.06 | M = 48.31 | t = 0.32 | p = .75, ns |
| SD = 31.0 | SD = 34.4 | |||
| n = 16 | n = 16 | |||
| CDI 3 raw scores | M = 25.62 | M = 27.7 | t = −0.01 | p = .99, ns |
| SD = 28.3 | SD = 15 | |||
| n = 16 | n = 15 | |||
| MSEL Visual Reception raw scores | M = 31.6 | M = 28.7 | t = 1.12 | p = .27, ns |
| SD = 9.1 | SD = 4.6 | |||
| n = 16 | n = 14 | |||
| MSEL Visual Reception: Proportion with t scores more than 1 SD below the M | P = .63 | P = .64 | z = 0.10 | p = .92, ns |
| n = 16 | n = 14 | |||
| MSEL Receptive Language raw scores | M = 27.3 | M = 26.5 | t = 0.25 | p = .81, ns |
| SD = 9.3 | SD = 6.1 | |||
| n = 16 | n = 13 | |||
| MSEL Receptive Language: Proportion with t scores more than 1 SD below the M | P = .63 | P = .77 | z = 0.83 | p = .40, ns |
| n = 16 | n = 13 | |||
| MSEL Expressive Language raw scores | M = 24.1 | M = 23.6 | t = 0.15 | p = .88, ns |
| SD = 9.2 | SD = 8.1 | |||
| n = 15 | n = 14 | |||
| MSEL Expressive Language: Proportion with t scores more than 1 SD below the M | P = .73 | P = .79 | z = 0.32 | p = .74, ns |
| n = 15 | n = 14 |
Note. SCQ = Social Communication Questionnaire; CDI 2 and CDI 3 = MacArthur–Bates Communicative Development Inventories–Short Forms, Levels 2 and 3, respectively; MSEL = Mullen Scales of Early Learning; ns = not statistically significant.