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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.

Learn more about the history of ERIC here. PDF icon

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Fisher, William P., Jr. – Measurement: Interdisciplinary Research and Perspectives, 2011
Humphry's article, "The Role of the Unit in Physics and Psychometrics," offers fundamental clarifications of measurement concepts that Fisher hopes will find a wide audience. In particular, parameterizing discrimination while preserving statistical sufficiency will indeed provide greater flexibility in accounting "for the effects of empirical…
Descriptors: Physics, Psychometrics, Statistical Analysis, Measurement
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Fisher, William P., Jr. – Measurement: Interdisciplinary Research and Perspectives, 2008
Engelhard draws out the similarities and differences in Guttman's, Rasch's, and Mokken's perspectives on invariance in measurement. He provides a valuable model in evaluating the extent to which different measurement theories and methods serve as a basis for achieving the fundamental goals of quantification. The full extent of this point will…
Descriptors: Rating Scales, Models, Measurement, Heuristics
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Fisher, William P., Jr. – Measurement: Interdisciplinary Research and Perspectives, 2007
The American Educational Research Association (AERA) 2007 Call for Proposals points out the need for researchers in education to look beyond their usual sources to other fields that have extensive experience in relevant theories and methods. In transitioning from a response to AERA's Call for Proposals to the text of these articles on Assessing…
Descriptors: Mathematics Education, Evaluation Methods, Research Methodology, Validity