This project used questionnaires to investigate the effects of foster care on biological children in the foster home setting. In southeast Iowa, 52 foster parents and 51 biological children voluntarily responded. Approximately 77% of the foster parents were concerned about the effects of foster care on their biological children—in particular, that biological children felt left out of the family unit. The majority of the foster parents stated that sharing of parental attention should be discussed with biological children before beginning, and both parents and children felt that pretraining sessions for biological children would help their adjustment to foster care.