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Error of Measurement2
Item Analysis2
Item Response Theory2
Classification1
Decision Making1
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Hypothesis Testing1
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Psychological Methods1
Psychometrika1
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Sijtsma, Klaas2
Croon, Marcel A.1
Emons, Wilco H. M.1
Meijer, Rob R.1
van der Ark, L. Andries1
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Mokken Scale Analysis for Dichotomous Items Using Marginal Models
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van der Ark, L. Andries; Croon, Marcel A.; Sijtsma, Klaas – Psychometrika, 2008
Scalability coefficients play an important role in Mokken scale analysis. For a set of items, scalability coefficients have been defined for each pair of items, for each individual item, and for the entire scale. Hypothesis testing with respect to these scalability coefficients has not been fully developed. This study introduces marginal modelling…
Descriptors: Hypothesis Testing, Item Response Theory, Error of Measurement, Scaling
On the Consistency of Individual Classification Using Short Scales
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Emons, Wilco H. M.; Sijtsma, Klaas; Meijer, Rob R. – Psychological Methods, 2007
Short tests containing at most 15 items are used in clinical and health psychology, medicine, and psychiatry for making decisions about patients. Because short tests have large measurement error, the authors ask whether they are reliable enough for classifying patients into a treatment and a nontreatment group. For a given certainty level,…
Descriptors: Psychiatry, Patients, Error of Measurement, Test Length