Intervention scientists have used program theory-driven evaluation to design, implement, and assess the success of intervention programs for decades. However, interventions often are designed without the input of the community for which they are intended. The lack of incorporation of community members' voices that participate in various…

The profession of evaluation continues to grow, generating more demand for evaluation services than can be fulfilled by the supply of well-trained evaluation practitioners. In this brief forum article, we discuss the current state of evaluator education in the United States and the ways in which university-based programs support the development of…

The increasing number of anti-trafficking organizations and funding for anti-trafficking services have greatly out-paced evaluative efforts resulting in critical knowledge gaps, which have been underscored by recent recommendations for the development of greater evaluation capacity in the anti-trafficking field. In response to these calls, this…

This paper reviews the use of multiple trials, defined as multiple sites or multiple arms in a single evaluation and replications, in evaluating social programs. After defining key terms, the paper discusses the rationales for conducting multiple trials, which include increasing sample size to increase statistical power; identifying the most…

In experimental evaluations of health and social programs, the role of dosage is rarely explored because researchers cannot usually randomize individuals to experience varying dosage levels. Instead, such evaluations reveal the average effects of exposure to an intervention, although program exposure may vary widely. This article compares three…

Evaluating initiatives implemented across multiple settings can elucidate how various contextual factors may influence both implementation and outcomes. Understanding context is especially critical when the same program has varying levels of success across settings. We present a framework for evaluating contextual factors affecting an initiative…

This article contributes to research on evaluation by examining the capacity and contribution of developmental evaluation for innovating. This case study describes the "preformative development" of an educational program (from conceptualization to pilot implementation) and analyzes the processes of innovation within a developmental…

This article demonstrates the value of theoretical ex-ante evaluation of policy programs. We show how a specific policy might not achieve its objectives and illustrate the elements of the policy, which need improvement. These conclusions are based on a reconstruction and evaluation of the theory behind a policy program that aims to increase…

The article reports on the findings of a comparative case study of six projects that operated in Israel between 1980 and 2000. The study findings identify characteristics of the programs, the host organizations, and the social and political environment, which differentiated programs that are sustained from those that are not. The findings reaffirm…

The theory-based evaluation approach documents the assumptions implicit in program design and points to the data required to test these assumptions. Collecting and analyzing such data through quantitative and qualitative techniques enhances understanding of the validity of the assumptions and the relevance of key program processes. This article…