Table 3.
Description of “Unique Participants” 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) | 20 (19, 1) | 24 (22, 2) | 68 (47, 21) | 15 (12, 3) | 8 (3, 5) | 24 (21, 3) | 11 (10, 1) | 36 (24, 12) |
| Mean Chronological age (SD) | 17.70a (1.90) | 15.33b (2.48) | 15.82b (2.69) | 22.20a (1.86) | 25.38b (2.26) | 26.00a (2.62) | 23.45b (2.66) | 22.28b (1.11) |
| Chronological age minimim-maximum | 13–20 | 12–19 | 12–20 | 21–28 | 22–28 | 22–30 | 21–29 | 21–25 |
| Mean Nonverbal mental age (SD) | 18.05 (2.98) | 16.94 (3.10) | 18.62 (3.18) | 19.87 (3.61) | 19.62 (7.11) | 25.04 (3.56) | 24.82 (5.78) | 25.40 (3.32) |
| Nonverbal mental age minimim-maximum | 13–23 | 12–24 | 12–26 | 12–26 | 12–35 | 19–33 | 17–37 | 20–35 |
| Mean Verbal mental age (SD) | 13.05a (4.15) | 13.35a (2.96) | 16.93b (4.03) | 11.03 (5.03) | 13.13 (6.58) | 21.79 (5.12) | 22.32 (7.06) | 25.39 (3.94) |
| Verbal mental age minimim-maximum | 6–21 | 9–19 | 10–26 | 1–19 | 4–26 | 12–31 | 12–38 | 19–36 |
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.