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ERIC Number: ED156719
Record Type: Non-Journal
Publication Date: 1977
Pages: 69
Abstractor: N/A
Reference Count: N/A
The Logic of Evaluative Argument. CSE Monograph Series in Evaluation, 7.
House, Ernest R.
Evaluation is an act of persuasion directed to a specific audience concerning the solution of a problem. The process of evaluation is prescribed by the nature of knowledge--which is generally complex, always uncertain (in varying degrees), and not always propositional--and by the nature of logic, which is always selective. In the process of persuasion one must ascertain who the audience is and find a basis of agreement on premises, both of facts and values, and on presumptions. Two criteria for evaluation are: the most efficient way to a given end, or the most effective use of available resources. Quantitative evaluation methods involve three stages: (1) substantive definition of the problem and its translation into a formal, mathematical model; (2) compilation of information in terms of the formal model and its formal, logical analysis; and (3) translation of the formal conclusions back into substantive terms. Both formulation and interpretation require good intuitive judgment. The evaluator and the audience must employ their reasoning in a dialogue, and both must assume responsibility, since evaluation is never completely convincing nor entirely arbitrary. The logical arguments used in two works are discussed. The works--Gene V. Glass' review of Michael Scriven's instructional cassette lecture on "Evaluation Skills;" and Scriven's reply--are appended. (Author/CTM)
Center for the Study of Evaluation, UCLA Graduate School of Education, 405 Hilgard Avenue, Los Angeles, California 90024 ($4.50)
Publication Type: Books
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: National Inst. of Education (DHEW), Washington, DC.
Authoring Institution: California Univ., Los Angeles. Center for the Study of Evaluation.