| Study | Research Design | Outcomes |
|---|---|---|
| Blythe, B. J. & Jayaratne, S. (1999). Michigan families first effectiveness study: A summary of findings. Report submitted to the State of Michigan, Family Independence Agency | Random assignment control group design. Placement prevention at 12 months after services. | 93% of the treatment group avoided placement. 43% of the control group avoided placement. |
| Fraser, M. W., Pecora, P. J., & Haapala, D. A. (1991). Families in Crisis. New York: Aldine de Gruyter. | Quasi-experimental longitudinal design, with overflow comparison group in Utah. Placement prevention at 12 months after intake (approximately 11 months after services). | 71% of Washington treatment group; and 62% of Utah treatment group avoided placement. 15% of comparison group avoided placement. |
| Fraser, M., Walton, E., Lewis, R., Pecora, P., & Walton, W. (1996). An experiment in family reunification services: Correlates of outcomes at one year follow up. Children and Youth Services Review, 18 (4/5), 335-361 | Random assignment control group design. Reunification rate at 12 months after services. | 92% of the treatment group returned home. 28% of the control group returned home. |
| Kirk R.S. & Griffith, D.P. (2008). Impact of intensive family preservation services on disproportionality in one state’s child welfare system. Child Welfare, 87(5), 87-105. | Retrospective design. | 81% of treatment group avoided placement. 51% to 61% of comparison group avoided placement. |
| Kirk, R. S & Griffith, D. P. (2004). Intensive family preservation services: Demonstrating placement prevention using event history analysis. Social Work Research, 28(1), 5-18. | Retrospective design. Placement prevention rate at 12 months after services. | 81% of treatment group avoided placement. 51% to 61% of comparison group avoided placement. |
| Morris, E., Suarez, L. & Reid, J. C. (1997). Behavioral outcomes of home-based services for children and adolescents with serious emotional disorders. Family Preservation Journal, 2(2), 21-32. | Quasi-experimental, one group, pre-test, post-test design | Decreases in mental health symptoms – externalizing and internalizing child behavior problems: Oppositional Defiant Disorder; Mood Disorders; Conduct Disorders (aggressive and delinquent behavior) |
| Walton, E. (1998). In-home family-focused reunification: A six-year follow-up of a successful experiment. Social Work Research, 22, 205-214. | Random assignment control group design. Reunification rate at 12 months after services. | 92% of the treatment group returned home. 28% of the control group returned home. Differences in reunification were maintained at a six year follow-up. |
| Wood, S., Barton, K., & Schroeder, C. (1988). In-home treatment of abusive families: Cost and placement at one year. Psychotherapy 24(3), 409-414. | Placement prevention at 12 months after Overflow comparison group. | 74% of the treatment group avoided placement. 45% of the comparison group avoided placement. |