On Evaluating Evaluations.

The act of evaluation requires an expenditure of resources. In Part 1 of this paper, we present a simple decision tree model borrowed from operations research to provide a conceptual framework for considering whether or not lo commit such resources. In Part II. once the evaluation is carried out, we address the problem of evaluating the evaluation as a vehicle for producing useful information to decisionmakers. Evaluation inputs, processes, and outcomes are defined and discussed within the context of comprehensive evaluation of evaluations. [ABSTRACT FROM AUTHOR]