Abstract
This article discusses both the methodological and theoretical principles involved in comparative evaluation. The term comparative evaluation refers to research in which an evaluation and the findings of the evaluation process are set in a comparative framework. The principles on which the comparative evaluation process should be based, however, are not always clear. This article analyses the content of these principles and begins with a discussion of the purpose and function of comparative evaluation. This is followed by an analysis of four different principles common to the method of comparative evaluation: selection of the evaluation object; the level of comparison; conceptual comprehension; and the analysis of the findings of an evaluation. When these principles are applied to the comparative evaluation study, the study most likely produces comparable and reliable information for organizational development work.
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