Research syntheses are appealing because they enable decision makers to determine quickly whether policies, programs, and practices will have effects on student achievement and, if so, the magnitudes of the likely effects. Such syntheses should present objective, clear, scientifically accurate, and defensible evidence in terms that educators can…

Traditional methods for preparing systematic reviews and syntheses of effectiveness studies rely on a limited set of methodological criteria to include studies that measure and report effects too narrowly to forward the mission of evidence-based practice. This article discusses why and how the criteria for study selection, evidence screening, and…

The analytical approaches used to develop and evaluate policies at the water-use planning sites are intended to provide insight to decisionmakers and to help stakeholders structure their thinking and deliberations. These objectives are fundamentally different from those of evaluation approaches favored by many economists, which seek to provide a…