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Willson, Victor L. – Evaluation and Program Planning: An International Journal, 1981
It is argued that time generalizability exists independent of population and situation generalizability, although the three may interact. Problems associated with sampling and randomization efficacy over time are discussed. (Author/GK)
Descriptors: Generalization, Research Design, Research Problems, Sampling

Ross, John A. – Evaluation and Program Planning: An International Journal, 1981
Professional evaluators are often called upon to analyze data produced by a catastrophically inadequate evaluation design. A remedial strategy involving diagnosis of error, application of a corrective procedure and sensitization of program personnel of the need for a more sophisticated stance, is proposed and illustrated with a case study.…
Descriptors: Data Analysis, Meta Evaluation, Models, Program Evaluation