The purpose of this study was to examine the effect of cumulative risk on dropout and treatment outcome in parent training. The findings suggest that it can be useful to conceptualize risk factors as having a cumulative, in addition to individual, influence on parent-training interventions for children with developmental delay and have significant implications for clinical practice. It is important for clinicians to regularly assess for risk factors, and future research should examine ways in which clinicians can improve retention and outcome of parent training in the presence of multiple risk factors.
Bagner, Daniel M. & Graziano, Paulo A. (2013). Behavior Modification, 37, 356-377.