Search for dissertations about: "item response theory"
Showing result 1 - 5 of 16 swedish dissertations containing the words item response theory.
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1. Contributions to Kernel Equating
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : The statistical practice of equating is needed when scores on different versions of the same standardized test are to be compared. This thesis constitutes four contributions to the observed-score equating framework kernel equating. READ MORE
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2. Observed score equating with covariates
University dissertation from Umeå : Department of Statistics, Umeå universityAbstract : In test score equating the focus is on the problem of finding the relationship between the scales of different test forms. This can be done only if data are collected in such a way that the effect of differences in ability between groups taking different test forms can be separated from the effect of differences in test form difficulty. READ MORE
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3. Composite Likelihood Estimation for Latent Variable Models with Ordinal and Continuous, or Ranking Variables
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : The estimation of latent variable models with ordinal and continuous, or ranking variables is the research focus of this thesis. The existing estimation methods are discussed and a composite likelihood approach is developed. READ MORE
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4. Longitudinal Models for Quantifying Disease and Therapeutic Response in Multiple Sclerosis
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : Treatment of patients with multiple sclerosis (MS) and development of new therapies have been challenging due to the disease complexity and slow progression, and the limited sensitivity of available clinical outcomes. Modeling and simulation has become an increasingly important component in drug development and in post-marketing optimization of use of medication. READ MORE
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5. A Facet Model of the Logical Operational Structures of Piaget's Theory : Guttman's Facet Design applied to Piaget's Theory
University dissertation from Stockholm : Stockholm UniversityAbstract : This thesis explored whether the complex structure of Piaget's theory of operational thinking could be synthesized into a facet model by means of facet design. The aims were: (1) to deduce from detailed conceptual analyses of 12 of Piaget's classical experiments the essential parts of the operational structures (Study I); (2) to explore the internal structure of his constructs in terms of a mapping sentence (Study II); (3) to study the hierarchical structure of the interrelationships between the constructs (Study III); and (4) to apply the facet model in the development of test items (Study II and IV). READ MORE
