Assessing Modelling Competencies Using a Multidimensional IRT Approach

Luzia Zöttl, Stefan Ufer, Kristina Reiss

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

21 Scopus citations

Abstract

We assessed students’ modelling competency using a test consisting of different classes of items. Within the first class there are items which cover the whole modelling process, whereas items of the second class focus only on certain parts of this process. To cope with the requirements of the two different classes of items we used a multidimensional Rasch model including subdimensions. In this chapter we describe the structure of the test instrument and compare the subdimensional scaling of the test results with a unidimensional one. The analyses show the superiority of the subdimensional scaling.

Original languageEnglish
Title of host publicationInternational Perspectives on the Teaching and Learning of Mathematical Modelling
PublisherSpringer Science and Business Media B.V.
Pages427-437
Number of pages11
DOIs
StatePublished - 2011
Externally publishedYes

Publication series

NameInternational Perspectives on the Teaching and Learning of Mathematical Modelling
Volume1
ISSN (Print)2211-4920
ISSN (Electronic)2211-4939

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