Introduction
This report is a technical supplement to the 15-month impact report for the Building Strong Families (BSF) evaluation (Wood et al. 2010). It provides additional detail about the research design, analytic methods, and variable construction that were used for the 15-month analysis. The report also provides a discussion of the subgroup analysis that was conducted. The full set of impact results generated as part of this analysis is included in the appendices of this volume.