#9086. A Multidimensional Item Response Theory Model for Continuous and Graded Responses With Error in Persons and Items

September 2026publication date
Proposal available till 21-05-2025
4 total number of authors per manuscript3510 $

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Journal’s subject area:
Education;
Applied Mathematics;
Developmental and Educational Psychology;
Applied Psychology;
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Abstract:
Item response theory “dual” models (DMs) in which both items and individuals are viewed as sources of differential measurement error so far have been proposed only for unidimensional measures. This article proposes two multidimensional extensions of existing DMs: the M-DTCRM (dual Thurstonian continuous response model), intended for (approximately) continuous responses, and the M-DTGRM (dual Thurstonian graded response model), intended for ordered-categorical responses (including binary).
Keywords:
factor analysis; item discrimination; multidimensional item response theory; multidimensional location; person fluctuation; personality measurement

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