Titlebook: A Course in Rasch Measurement Theory; Measuring in the Edu David Andrich,Ida Marais Textbook 2019 The Editor(s) (if applicable) and The Aut

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https://doi.org/10.1007/978-981-13-7496-8measurement and assessment; studying measurement; mathematical model; Rasch measurement; Social measurem

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David Andrich,Ida MaraisPresents course material developed in two decades of online and intensive teaching.Provides researchers with the confidence they need in order to be in control of the analysis and interpretation of da

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https://doi.org/10.1057/9780230355484In CTT, reliability is defined as the proportion of true score variance to total variance. It is most often estimated using the coefficient .. This index assumes the instrument is unidimensional and is not a test of unidimensionality. Construct validation addresses the substantive dimension of the variable assessed.

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The Hidden Costs of Better CoordinationRMTand CTT are not incompatible theories but RMT can be seen as an elaboration of CTT.

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