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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ088718
Record Type: CIJE
Publication Date: 1973
Pages: N/A
Abstractor: N/A
Reference Count: 0
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Concept Learning as a Function of Type, Identifiability, and Variety of Instructional Instances
Harris, R. Carl
Journal of Educational Research, 67, 4, 182-9, Dec 73
Subject matter concept attainment by adult students was studied by experimentally manipulating instructional instances which were either positive or negative, clear or obscure, or presented in large or small variety. (Author/JA)
Publication Type: N/A
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