Drug studies are often cited as the best exemplars of evaluation design. However, many of these studies are seriously biased in favor of positive findings for the drugs evaluated, even to the point where dangerous effects are hidden. In spite of using randomized designs and double blinding, drug companies have found ways of producing the results…

Explores two issues that have strongly influenced much of what has happened in evaluation in recent decades. The quantitative-qualitative debate has been fueled by changes in theories of causation. The second issue, that of the fact-value dichotomy, can be dealt with through the realization that facts and values are not separate kinds of entities,…

Chelimsky, former head of the Program Evaluation and Methodology Division of the General Accounting Office, suggested that advocacy by evaluators destroys their credibility. Evaluators should, this author argues, be advocates for democracy and the public interest, with the question being how explicitly and how defensibly. (SLD)

Discusses the inappropriate racial categorizations of minorities that have routinely infected evaluations and social research. By adhering to principles of democracy and including minorities as participants in dialogue, evaluators can avoid such damaging effects in their work. (Author/SLD)