The Autism Biomarkers Consortium for Clinical Trials: Confirmation Study (ABC-CT CS)

This is a multicenter longitudinal study that aims to validate a set of measures that were previously identified as promising candidate biomarkers and/or sensitive and reliable objective measures of social function in ASD for potential use in clinical trials. The confirmation study will repeat the data collection and analysis protocols from the original ABC-CT study. This confirmation study will recruit 200 ASD and 200 TD comparison participants who are 6-11 years old, matching the overall sample size but providing a larger normative reference sample and greater statistical power for group comparisons.