In Children in Foster Care: A Longitudinal Invesitation the researchers followed for five years a sample of all the children that had been admitted to foster care in New York in one year. Most children experienced up to two moves over the five years;  black children had  the most moves.  Parental contact was associated with fewer moves. A Classic in Child Welfare.  Hardbound, good condition.  Our copy of this classic is one of few in circulation  (Pic is not of book).