Many inquiries regarding the causal effects of policies or programs are based on research designs where the treatment assignment process is unknown, and thus valid inferences depend on tenuous assumptions about the assignment mechanism. This article draws attention to the importance of understanding the assignment mechanism in policy and program…

The concept of "implementation fidelity" is broadly used to capture the extent to which an intervention is executed as intended by the designers of the intervention (Century, Rudnick, & Freeman, 2010; Huntley, 2005, McNaught, Tarr, & Sears, 2010, Munter, 2010). Though implementation fidelity instruments are often used to assess…

All evaluators face the challenge of striving to adhere to the highest possible standards of ethical conduct. Translating the AEA's Guiding Principles and the Joint Committee's Program Evaluation Standards into everyday practice, however, can be a complex, uncertain, and frustrating endeavor. Moreover, acting in an ethical fashion can require…

An eighth grade alcohol education program and its evaluation are described. The design and methodology of this evaluation, and of program evaluation in general, are also discussed. The results are not presented. (CTM)

The impact of non-response (NR) in baseline data collection on the ability to analyze treatment effects in Project ALERT (Adolescent Experiences in Resistance Training) was studied. Project ALERT is a multisite, multiyear test of a smoking and drug prevention program for seventh and eighth graders. Questionnaires about drug use and related topics…

Since 1988, Vermont has been developing a state assessment program, the centerpiece of which is the student portfolio and "best pieces" drawn from it. The state's use of portfolio results will be limited to reporting aggregates, but within schools, teachers and principals may use the portfolios as they choose. The assessment program,…