Psychological measurement; Psychophysical theory; A mathematical introduction; The method of average error; Method of minimal changes; The constant methods; The method of pair comparisons; The method of rank order; Scaling from interval and ration judgements; The method of successive categories and other scaling methods and problems; Rating scales; Principles of judgment; Theory of psychological tests; Reliability and validity of measures; Test development; Factor analysis.
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Extremely important foundational psychometrics book that had a huge impact on applied research and test construction. Much has been improved since the 1950s, but this is truly a classic.
A Mathematical Introduction
The Method of Average Error
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