# Table 1 Participant information

Study 1 Study 2 Study 3 Study 4 Study 5
N 183 350 400 979 579
Male 64.5% 60.9% 60.5% 51.4% 46.5%
Gender not given 0.5% 0.2% 0.9%
Age range and mean 18–64
32.53
(9.91)
19–75
36.52
(11.12)
20–75
37.34
(12.17)
18–79
37.43
(12.09)
19–84
36.80
(11.91)
Net household income \$36,709
(\$2256)
\$41,273
(\$2139)
\$40,257 (\$2392) \$60,744
(\$2337)
\$59,689
(\$2335)
(\$2260)
\$29,018
(\$2051)
\$27,827
(2125)
Personal income \$26,641
(\$2919)
\$24,798
(\$2932)
Others’ income \$32,939
(\$3785)
\$35,950
(\$3268)
SSS 4.69 (1.65) 4.91 (1.76)
AQ 65.18 (11.73) 66.23 (11.16) 92.15 (16.04) 93.82 (15.22) 66.92 (9.83)
% live alone 29.75% 22.98% 21.93%
Adults 1.97 (0.91) 2.15 (1.01) 2.16 (1.04)
Children 0.42 (0.91) 0.50 (0.92) 0.63 (1.04)
1. Values in parentheses are standard deviations. AQ refers to scores on the short-form Autism Spectrum Quotient. For income measures, the values are geometric means calculated by exponentiating the arithmetic mean of ln(x + 1) where x is the income in thousands per year; similarly, the income standard deviations are the exponentiated standard deviation of ln(x + 1). Others’ income is the net income of all other members of the household, for those participants who do not live alone (N = 754 and N = 452 for studies 4 and 5, respectively). Studies 3 and 4 used a 6-point response scale for the AQ, which is why the means are much higher than for other studies. % live alone indicates the proportion of participants whose household consists of just one person; adults and children are the mean number of adults (including the participant) and children in the household