A major obstacle to developing evidenced-based policy is the difficulty of implementing randomized experiments to answer all causal questions of interest. When using a nonexperimental study, it is critical to assess how much the results could be affected by unmeasured confounding. We present a set of graphical and numeric tools to explore the…

Implementation fidelity assessment provides a means of measuring the alignment between the planned program and the implemented program. Unfortunately, the implemented program can differ from the planned program, resulting in ambiguous inferences about the planned program's effectiveness (i.e., it is uncertain if poor results are due to an…

This article seeks to describe attributes of effective health educators by presenting the interrelationships between Stephen Covey's "Seven Habits of Highly Effective People" and the responsibilities and competencies proposed by the National Commission for Health Education Credentialing, Inc. A brief historical account of key figures and events…