Nonresponse weighting is a common method for handling unit nonresponse in surveys and is aimed at reducing nonresponse bias. Because the method can be accompanied by an increase in variance, the efficacy of weighting adjustments is often seen as a bias-variance trade-off. This view is an...

This issue brief provides a concise description for decision makers of why and how to commission effective evaluations of patient-centered medical home demonstrations. The authors discuss what outcomes to assess, why to include comparison practices, and the importance of accounting for clustering.