Professor Cordray’s research has focused on estimating the numerical effects of social interventions directed at-risk populations (e.g., homeless, substance abusers). In addition to conducting multi-site evaluations of intervention programs, he has contributed to the development of methodological refinements of quasi-experimental designs, meta-analysis, and non-traditional forms of causal inquiry. This presentation is sponsored by the Nebraska Center for Research on Children, Youth, Families and Schools and The National Center for Research on Rural Education, in conjunction with the Survey, Statistics, and Psychometrics Core Facility.