Table 1.
Group means and standard deviations for age, gender, estimated IQ, educational level, and autism rating scale score
| Groups | |||
|---|---|---|---|
| Autism (n = 23) | Controls (n = 23) | Statistics | |
| Age | 63.6 years (SD 7.5) | 63.7 (SD 8.1) | F < 1, ns, η 2 = .00 |
| Gender | 5 F, 18 M | 5 F, 18 M | χ 2 (1, N = 46) = .00, p = 1.0 |
| DART-IQ | 109.5 (10.3) | 109.8 (7.9) | F < 1, ns, η 2 = .00 |
| Educationa | 1/6/7/9 | 0/5/10/8 | χ 2 (3, N = 46) = 1.679, p = .64 |
| SRSb | 94.1 (26.4) | 25.9 (11.3) | F(1, 44) = 129.9, p < .001, η 2 = .75 |
F female, M male, DART-IQ Dutch adult reading Test IQ, SRS Social Responsiveness Scale. Please note that various participants (autism group n = 12; controls n = 14) used medication to treat a broad range of conditions (e.g., diabetes, arthritis). None of these drugs affect performance on the tasks included in the current study
aThe numbers between the slashes indicate the number of participants who had pre-vocational education/junior general secondary or vocation education/senior general secondary education or vocation colleges/university education
bThe adult version of the SRS is a 65-item questionnaire which addresses reciprocal social behavior, communicative deficits, and stereotypic behavior. The SRS is effective in distinguishing between individuals with and without autism. SRS scores range from 0 (socially highly competent) to 195 (severely socially impaired)