Year 2020, Volume 7 , Issue 1, Pages 18 - 29 2020-04-01

Use of Item Response Theory to Validate Cyberbullying Sensibility Scale for University Students

Osman Tolga ARICAK [1] , Akif AVCU [2] , Feyza TOPÇU [3] , Merve Gülçin TUTLU [4]


A thirteen-item cyberbullying sensibility scale (CSS), developed by Tanrıkulu, Kınay, and Arıcak (2013) and extensively used by researchers, was used to measure the cyberbullying sensibility levels of high school students. Unlike other similar concepts, such as cyberbullying and cyber victimization, there are no scales developed to measure the cyberbullying sensibility among university students. In this study, the data obtained from 727 university students were analyzed based on item response theory (IRT) techniques, and psychometric evidences were obtained to evaluate whether it is appropriate to use the scale on the university students. Accordingly, a parameterization of CSS items was performed by using the graded response model. Using the discrimination parameters and item fit statistics, some items were removed from the original scale and a seven-item CSS version was developed since preliminary exploratory and confirmatory factor analyses provide inadequate evidence for the validity of a one-dimensional structure of cyberbullying sensibility. However, an IRT-based item removal process yielded an acceptable improvement. In this way, despite the six items being removed from the original CSS form, the scale retained 64% of the information it provided. The reliability values computed based on the classical approach and IRT were above .8 after the item elimination process with only a minor drop. With the validation process, the CSS will be a valuable measurement tool to determine the level of cyberbullying sensibility among university students and allow academicians to conduct research with this population.
cyberbullying sensibility, test validation, Item response theory, Graded response model, Item selection
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Primary Language en
Subjects Education, Scientific Disciplines
Published Date March
Journal Section Articles
Authors

Orcid: 0000-0001-8598-5539
Author: Osman Tolga ARICAK
Institution: HASAN KALYONCU ÜNİVERSİTESİ
Country: Turkey


Orcid: 0000-0003-1977-7592
Author: Akif AVCU (Primary Author)
Institution: Marmara University
Country: Turkey


Orcid: 0000-0002-5853-2670
Author: Feyza TOPÇU
Institution: HASAN KALYONCU UNIVERSITY
Country: Turkey


Orcid: 0000-0003-4225-7982
Author: Merve Gülçin TUTLU
Institution: HASAN KALYONCU UNIVERSITY
Country: Turkey


Dates

Publication Date : April 1, 2020

APA ARICAK, O , AVCU, A , TOPÇU, F , TUTLU, M . (2020). Use of Item Response Theory to Validate Cyberbullying Sensibility Scale for University Students. International Journal of Assessment Tools in Education , 7 (1) , 18-29 . DOI: 10.21449/ijate.629584