Parent training for foster parents is mandated by federal law and supported by state statues in nearly all states; however, little is known about the efficacy of that training, and recent reviews underscore that the most widely used curricula in the child welfare system (CWS) have virtually no empirical support (Farmer et al., 2007;Grimm, 2003). On the other hand, numerous theoretically-based, developmentally-sensitive parent training interventions have been found to be effective in experimental clinical and prevention intervention trials (e.g., Kazdin & Wassell, 2000;McMahon & Forehand, 2003;Patterson & Forgatch, 1987;Webster-Stratton et al., 2001). One of these, Multidimensional Treatment Foster Care (MTFC; Chamberlain 2003), has been used with foster parents of youth referred from juvenile justice. The effectiveness of an intervention based on MTFC was tested in a universal randomized trial with 700 foster and kinship parents in the San Diego County CWS. The goal of the intervention was to reduce child problem behaviors through strengthening foster parents' skills. The trial was designed to examine effects on both child behavior and parenting practices, allowing for specific assessment of the extent to which improvements in child behavior were mediated by the parenting practices targeted in the intervention. Child behavior problems were reduced significantly more in the intervention condition than in the control condition, and specific parenting practices were found to mediate these reductions, especially for high-risk children (i.e., those with more than 6 behavior problems per day at baseline).
Keywords parent management training; foster parents; effectiveness trialChild welfare services are estimated to cost $20 billion per year (Allphin et al., 2001), yet very little experimental research has been used to guide the interventions used within that system. In a systematic review of research on children in foster care, Wulczyn et al. (2005) found that most existing studies were descriptive in nature. They and other researchers (e.g., Courtney, 2000) have called for experimental research to improve practices in the child welfare system (CWS), particularly for children in out-of-home care. In this study, we tested Correspondence should be directed to Patricia Chamberlain, Oregon Social Learning Center, 10 Shelton McMurphey Boulevard, Eugene, (541) 485-2711; fax, (541) NIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author Manuscript the effectiveness of an intervention designed to strengthen foster parents' parenting skills through the implementation of a theoretically-based intervention that had been shown in previous randomized studies to have positive short-and long-term effects on child outcomes Chamberlain & Reid, 1991;Leve et al., 2005). The intervention was expected to lead to improvements in foster parent child management skills, which were expected to result in fewer child behavior problems. Previous work has shown that behavior problems (particularly externalizing behaviors) are o...