The Problem of Negative Reliabilities

David J. Krus · Gerald C. Helmstadter

44 citations0/0 files storedEducational and Psychological Measurement

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Psychometric Methodologies and Testing Educational Assessment and Pedagogy Reliability and Agreement in Measurement

Abstract

Negative coefficients of reliability, sometimes returned by the standard formulae for estimation of the internal-consistency reliability, are neither theoretically nor numerically correct. Alternate strategies for test development in this special case are suggested.

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1951Coefficient Alpha and the Internal Structure of Tests 1937The Theory of the Estimation of Test Reliability 1910CORRELATION CALCULATED FROM FAULTY DATA 1910SOME EXPERIMENTAL RESULTS IN THE CORRELATION OF MENTAL ABILITIES 1 1941Test Reliability Estimated by Analysis of Variance 1985Educational measurement and testing 1939RELIABILITY OF MENTAL TESTS

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2009Effects of measurement errors on psychometric measurements in ergonomics studies: Implications for correlations, ANOVA, linear regression, factor analysis, and linear discriminant analysis 2016Intraclass Correlation Test-Score Reliability of a Single Trial

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