The Child Development Supplement (CDS) was created to provide researchers with comprehensive, nationally representative, longitudinal data on children and their families to study the dynamic process of early human capital formation. CDS-2019 was administered in 2019-2020 and includes information collected from 4,629 children aged 0-17 and their primary caregivers in PSID families. More information about the study and data is provided in the CDS-2019 User Guide. CDS-2019 was funded by the Eunice Kennedy Shriver National Institute on Child Health and Human Development (R01 HD052646).   As one part of the study, youth 12 years and older were interviewed by telephone. The survey questionnaire is available here. Child reports of racial and ethnic identity are available under restricted data contract.