How many response categories are sufficient for Likert type scales? An empirical study based on the Item Response Theory

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dc.authoridAybek, Eren Can/0000-0003-3040-2337
dc.authoridTORAMAN, Cetin/0000-0001-5319-0731
dc.contributor.authorAybek, Eren Can
dc.contributor.authorToraman, Cetin
dc.date.accessioned2025-01-27T20:47:46Z
dc.date.available2025-01-27T20:47:46Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe current study investigates the optimum number of response categories for the Likert type of scales under the item response theory (IRT). The data was collected from university students attend to mainly the faculty of medicine and the faculty of education. A form of the Social Gender Equity Scale developed by Gozutok et al. (2017) was prepared, which had 3, 5 and 7-point response categories. The graded response model (GRM) was used for item calibrations. The results of the study have revealed that using a 5-point response option provides advantages over using a 3-point response category in terms of reliability and test information perspective in the scale development process. The-5 point scale also provides easier responding process for the respondents while it does not pose a major disadvantage compared to a 7-point response category in the terms of reliability. Therefore, based on the findings of the study, researchers are recommended to use a 5-point response category in their scale development process.
dc.identifier.doi10.21449/ijate.1132931
dc.identifier.endpage547
dc.identifier.issn2148-7456
dc.identifier.issue2
dc.identifier.startpage534
dc.identifier.trdizinid1125653
dc.identifier.urihttps://doi.org/10.21449/ijate.1132931
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1125653
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25041
dc.identifier.volume9
dc.identifier.wosWOS:000834987900014
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherIzzet Kara
dc.relation.ispartofInternational Journal of Assessment Tools in Education
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectLikert-type scale
dc.subjectResponse categories
dc.subjectItem response theory
dc.titleHow many response categories are sufficient for Likert type scales? An empirical study based on the Item Response Theory
dc.typeArticle

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