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Evaluation Roots: Tracing Theorists Views and Influences examines current evaluation theories and traces their evolution within the framework of theories, building upon theories and how evaluation theories are related to each other. Initially, all evaluation was derived from social science research methodology and accountability concerns. The way in which these evaluation roots grew to form a tree helps to provide a better understanding of evaluation theory. Thus, the book uses an evaluation theory tree as its central metaphor. Editor Marvin C. Alkin posits that evaluation theories can be classified by the extent to which they focus on methods, uses, or valuing; these three approaches form the major limbs of the tree.
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