Table 4.
Description of “All Cases” sample in validity analyses
| 12–20 All | Nonverbal 21–30 | Verbal 21–30 | ||||||
|---|---|---|---|---|---|---|---|---|
| ASD | Non-spectrum | Typical | ASD | Non-spectrum | ASD | Non-spectrum | Typical | |
| N (male, female) | 55 (53, 2) | 47 (45, 2) | 90 (61, 29) | 32 (27, 5) | 14 (9, 5) | 59 (56, 3) | 24 (23, 1) | 39 (26.13) |
| Mean Chronological age (SD) | 17.20 (2.34) | 15.87 (2.48) | 15.93 (2.69) | 23.31 (2.39) | 24.71 (2.81) | 25.54a (2.71) | 24.79a (2.78) | 22.46b (1.37) |
| Chronological age minimim-maximum | 12–20 | 12–20 | 12–20 | 21–29 | 21–30 | 21–30 | 21–29 | 21–27 |
| Mean Nonverbal mental age (SD) | 17.21a, b (2.92) | 16.65a (4.33) | 18.63b (3.34) | 20.59 (3.28) | 19.43 (5.26) | 24.49 (3.53) | 23.75 (4.46) | 25.46 (3.84) |
| Nonverbal mental age minimim-maximum | 12–23 | 12–37 | 12–28 | 12–26 | 12–35 | 18–33 | 17–37 | 17–35 |
| Mean Verbal mental age (SD) | 11.87a (3.79) | 13.39a (5.37) | 17.04b (4.18) | 12.61 (4.99) | 13.00 (5.17) | 21.41a (5.93) | 21.35a, b (5.83) | 25.18b (4.61) |
| Verbal mental age minimim-maximum | 6–21 | 6–38 | 10–26 | 1–25 | 4–26 | 11–31 | 12–38 | 10–36 |
Note. ASD=autism spectrum disorder; SD=standard deviation. All ages are in months. There were no nonverbal typically developing children between 21 and 30 months.
a, b, c
Superscript letters refer to post hoc Scheffe test: When two groups in the same row and column are marked with different letters, they are significantly different (p < .01) from each other; groups marked with the same letter/without superscript letters are not significantly different.