Evaluative criteria define a "high quality" or "successful" evaluand and provide the basis for judgment of merit and worth, yet they are often assumed and implicit in the evaluation process. This article presents an empirically supported model that describes and integrates two aspects of criteria: domain and source. Domain…

This article presents the state of practice of evaluability assessment (EA) as represented in the published literature from 1986 to 2006. Twenty-three EA studies were located, showing that EA was conducted in a wide variety of programs, disciplines, and settings. Most studies employed document reviews, site visits, and interviews, common…

The evaluation of an intervention delivered across multiple treatment sites presents a unique opportunity for evaluators to gauge the manner and degree to which the "impact" of treatment varies across implementation conditions and different target populations. However, the availability of implementation data for each treatment site, while…

This article reviews the literature and practice concerned with the evaluation of science, technology, and innovation (STI) policies and the way these relate to theories of the innovation process. Referring to the experience of the European Union (EU), the authors review the attempts to ensure that the STI policy theory is informed by advances in…