Funding for this research was provided by:
Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD087011)
Received: 18 June 2019
Revised: 22 November 2019
Accepted: 26 November 2019
First Online: 18 December 2019
Compliance with ethical standards
: Dr. Constantino receives royalties from Western Psychological Services for the commercial distribution of the Social Responsiveness Scale, a quantitative measure of autistic traits for ages 30 months through adulthood. Lauren Castelbaum, Chad M. Sylvester, Yi Zhang and Qiongru Yu declare that they have no biomedical financial interests or potential conflicts of interest.
: All human subjects’ data incorporated into this analysis was approved by the Washington University Human Research Protection Office under protocols # HRPO 201208010 and by the State of Missouri Department of Health and Senior Services Institutional Review Board (State IRB Approval #1296).