Macarthur-Bates communicative development inventories (short form A): raw score | Preschool language scales, auditory comprehension subscale: standard score | Preschool language scales, expressive communication subscale: standard score | Mullen scales of early learning, visual reception subscale: T-scores | |
---|---|---|---|---|
Late talkers | M = 40 SD = 25 | M = 88 SD = 15 | M = 90 SD = 11 | M = 44 SD = 10 |
Typically developing children | M = 82 SD = 16 | M = 114 SD = 12 | M = 114 SD = 12 | M = 58 SD = 8 |
Test statistic | t = 6.73, p < 0.001 | t = 6.31 p < 0.001 | t = 6.17 p < 0.001 | t = 4.77 p < 0.001 |