Beyond Alpha: Lower Bounds for the Reliability of Tests
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May 1, 2010
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Nol Bendermacher
Radboud University, Nijmegen, The Netherlands
Abstract
The most common lower bound to the reliability of a test is Cronbach’s alpha. However, several lower bounds exist that are definitely better, that is, higher than alpha. An overview is given as well as an algorithm to find the best: the greatest lower bound.
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