In this paper, the author considers certain aspects of the problem of obtaining unbiased information about the merits of a program or product, whether for purposes of decision making or for accountability. The evaluation of personnel, as well as the evaluation of proposals and evaluations, generally involves a different set of problems than those…

This digest describes some of the basic logic-of-evaluation skills and some of the basic methodological skills that need to be mastered in order to practice the art and science of evaluation. Some topics from the logic of evaluation that must be dealt with include understanding : (1) the differences and connections between evaluation and other…

This essay provides some background on, explanation of, and justification of a theoretical framework for all types of evaluation. This framework is used to connect and underpin the approaches of other contributors to this special issue. A core discipline of evaluation is proposed that ties assorted evaluation fields together. (SLD)

This digest addresses the role of evaluation and its basic logic, and provides a description of how the field is structured. In order to reach evaluative conclusions it is usually necessary to establish or identify factual promises and value premises. To obtain the required kind of overall evaluative conclusion, it is typically necessary to…

Seven chapters present 31 propositions challenging traditional ideas about the nature and practice of program evaluation. Methods to improve evaluation models and approaches and ways to address intermediate and advanced evaluation issues are explored. The discussion also serves as an introduction to the most analytical and comprehensive of the…