How Many Response Categories Are Sufficient for Likert Type Scales? An Empirical Study Based on the Item Response Theory

Autor/inn/en	Aybek, Eren Can; Toraman, Cetin
Titel	How Many Response Categories Are Sufficient for Likert Type Scales? An Empirical Study Based on the Item Response Theory
Quelle	In: International Journal of Assessment Tools in Education, 9 (2022) 2, S.534-547 (14 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Zusatzinformation	ORCID (Aybek, Eren Can) ORCID (Toraman, Cetin)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
Schlagwörter	Likert Scales; Item Response Theory; College Students; Test Reliability; Test Construction; Test Items + Suchen Sie Ihr Suchwort? Likert-Skala; Item-Response-Theorie; Collegestudent; Testreliabilität; Testaufbau; Test content; Testaufgabe
Abstract	The 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. (As Provided).
Anmerkungen	International Journal of Assessment Tools in Education. Pamukkale University, Faculty of Education, Kinikli Campus, Denizli 20070, Turkey. e-mail: ijate.editor@gmail.com; Web site: https://ijate.net/index.php/ijate
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01