Sometimes, Only Some Siblings Go to Foster Care: Exploring Split Sibling Groups in a Nationwide Sample

Research on sibling separation in foster care often focuses on cases where all siblings are removed. However, separation can also occur when only some children are placed in care, a scenario that is underexplored. This study investigates: the frequency of partial sibling placements; differences between placed and non-placed siblings, as well as split versus intact sibling groups; and the risk of re-report and future placement for non-placed children in split groups compared to those in intact groups. US child maltreatment report (CMR) and foster care caseload data are accessed from National Child Abuse and Neglect Data System (NCANDS) and Adoption and Foster Care Reporting System (AFCARS). Sibling groups are assigned based on shared CMR in 2018. At least 27.4% of sibling groups, where at least one child is placed, are split. These groups have wide age ranges between children. Children in split groups left at home are at higher risk of placement than children in non-split groups.