Table 1.
Key participant characteristics across groups
| Final number | Number excluded | Chronological agea | RCPM scoresb | SDQ scoresb | CARS scoresb | |
|---|---|---|---|---|---|---|
| Williams syndrome |
15 |
3 |
13 years 6 months (70 months) |
15 (5.0) |
N/A |
N/A |
| TD matches |
15 |
0 |
10 years 1 month (49 months) |
15 (5.0) |
7 (2) |
N/A |
| Autism |
22 |
4 |
11 years 3 months (62 months) |
12 (3.7) |
N/A |
39 (4) |
| TD matches | 22 | 0 | 9 years 2 months (51 months) | 13 (3.5) | 8 (2) | N/A |
Standard deviation presented in parentheses. aStandard deviation in full calendar months.
bGroup mean scores for the Ravens Coloured Progressive Matrices (RCPM), the Strengths & Difficulties Questionnaire (SDQ) and the Childhood Autism Rating Scale (CARS) are rounded to the nearest whole number and therefore the nearest possible score on these measures.