Data are derived from the On-line Automated Services Information System (OASIS). The measure result is obtained from the Virginia Child Welfare Outcome Report (VCWOR) utility, specifically, the monthly Children's Services System Transformation Outcomes (CSSTO) report. The result is the number of foster care children in family-based placements divided by the total numer of foster care children in all placements for the reporting period. "Family-based placements" include non-finalized adoptive homes, trial home visits, relative foster families, and non-relative foster families. Children in privately run therapeutic foster homes are also included in this measure. To obtain a result for the quarter, the value reported in the last month's report for the quarter is used.