Enhancing measurement in science education research through Rasch analysis: Rationale and properties
This article presents the basic rationale of Rasch theory and seven core properties of Rasch modeling; analyses of test targeting, person separation, person fit, item fit, differential item functioning, functioning of response categories and tests of unidimensionality. Illustrative examples are prov...
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| Format: | Article |
| Language: | Danish |
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University of Oslo
2014-10-01
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| Series: | Nordina: Nordic Studies in Science Education |
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| Online Access: | https://journals.uio.no/nordina/article/view/662 |
| _version_ | 1818317281447378944 |
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| author | Jørgen Sjaastad |
| author_facet | Jørgen Sjaastad |
| author_sort | Jørgen Sjaastad |
| collection | DOAJ |
| description | This article presents the basic rationale of Rasch theory and seven core properties of Rasch modeling; analyses of test targeting, person separation, person fit, item fit, differential item functioning, functioning of response categories and tests of unidimensionality. Illustrative examples are provided consecutively, drawing on Rasch analysis of data from a survey where students in the 9th grade responded to questions regarding their mathematics competence. The relationship between Rasch theory and classical test theory is commented on. Rasch theory provides science and mathematics education researchers with valuable tools to evaluate the psychometric quality of tests and questionnaires and support the development of these. |
| first_indexed | 2024-12-13T09:34:50Z |
| format | Article |
| id | doaj.art-4c704556b5db46d6a7b9b50517c01a2c |
| institution | Directory Open Access Journal |
| issn | 1504-4556 1894-1257 |
| language | Danish |
| last_indexed | 2024-12-13T09:34:50Z |
| publishDate | 2014-10-01 |
| publisher | University of Oslo |
| record_format | Article |
| series | Nordina: Nordic Studies in Science Education |
| spelling | doaj.art-4c704556b5db46d6a7b9b50517c01a2c2022-12-21T23:52:22ZdanUniversity of OsloNordina: Nordic Studies in Science Education1504-45561894-12572014-10-0110210.5617/nordina.662Enhancing measurement in science education research through Rasch analysis: Rationale and propertiesJørgen Sjaastad0NIFU - Nordic Institute for Studies in Innovation, Research and EducationThis article presents the basic rationale of Rasch theory and seven core properties of Rasch modeling; analyses of test targeting, person separation, person fit, item fit, differential item functioning, functioning of response categories and tests of unidimensionality. Illustrative examples are provided consecutively, drawing on Rasch analysis of data from a survey where students in the 9th grade responded to questions regarding their mathematics competence. The relationship between Rasch theory and classical test theory is commented on. Rasch theory provides science and mathematics education researchers with valuable tools to evaluate the psychometric quality of tests and questionnaires and support the development of these.https://journals.uio.no/nordina/article/view/662Rasch analysisQuantitative methodsMeasurement |
| spellingShingle | Jørgen Sjaastad Enhancing measurement in science education research through Rasch analysis: Rationale and properties Nordina: Nordic Studies in Science Education Rasch analysis Quantitative methods Measurement |
| title | Enhancing measurement in science education research through Rasch analysis: Rationale and properties |
| title_full | Enhancing measurement in science education research through Rasch analysis: Rationale and properties |
| title_fullStr | Enhancing measurement in science education research through Rasch analysis: Rationale and properties |
| title_full_unstemmed | Enhancing measurement in science education research through Rasch analysis: Rationale and properties |
| title_short | Enhancing measurement in science education research through Rasch analysis: Rationale and properties |
| title_sort | enhancing measurement in science education research through rasch analysis rationale and properties |
| topic | Rasch analysis Quantitative methods Measurement |
| url | https://journals.uio.no/nordina/article/view/662 |
| work_keys_str_mv | AT jørgensjaastad enhancingmeasurementinscienceeducationresearchthroughraschanalysisrationaleandproperties |