Reliability, Validity, and Unidimensionality of the Korean Version of the Pornography Craving Questionnaire Based on the Classical Test Theory and Item Response Theory

Authors

Se-Rae Kim, Hallym University
Soo-Young Bhang, Eulji University
Eun Young Lim, Korea Institute for Curriculum and Evaluation
Sun Huh, Hallym University
Sang-Kyu Lee, Hallym University
Shane W. Kraus, University of Nevada, Las VegasFollow
Marc N. Potenza, Yale University

Document Type

Article

Publication Date

6-17-2021

Publication Title

Psychiatry Investigation

Publisher

Korean Neuropsychiatric Association

Volume

18

Issue

6

First page number:

530

Last page number:

538

Abstract

Objective This study aimed to evaluate the reliability and validity of the Korean version of the Pornography Craving Questionnaire (K-PCQ) using classical test theory and item response theory. Methods The goodness of fit test and differential item functioning (DIF) analysis based on the Rasch model, confirmatory factor analysis (CFA), exploratory factor analysis (EFA), and correlation analysis were used to test its reliability and validity. Results Response data from 226 students were analyzed. According to the goodness of fit test, the outfit mean square value of only one item, Item 11, was greater than 2. The CFA results revealed that all items of the K-PCQ measured a single construct. The EFA results revealed that the K-PCQ had excellent internal reliability. The DIF analysis results showed that the measurement of pornography craving using the K-PCQ did not differ based on gender. The result of Poly-DIMTEST supported the unidimensionality of the K-PCQ. The cutoff value of pornography craving was suggested as a measure of-0.0908 which corresponds to 46 (54.8%) out of a maximum score of 84. Conclusion The items of the K-PCQ are unidimensional and have good reliability and validity. The K-PCQ will be useful in clinical prac-tice and research as a screening tool for pornography craving.

Keywords

Item response memory; Measurement; Reproducibility of results; Sexual behavior; Validation study

Disciplines

Medicine and Health Sciences | Psychiatry and Psychology

File Format

pdf

File Size

370 KB

Language

English

Rights

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Creative Commons License

This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License

Repository Citation

Kim, S., Bhang, S., Lim, E., Huh, S., Lee, S., Kraus, S. W., Potenza, M. N. (2021). Reliability, Validity, and Unidimensionality of the Korean Version of the Pornography Craving Questionnaire Based on the Classical Test Theory and Item Response Theory. Psychiatry Investigation, 18(6), 530-538. Korean Neuropsychiatric Association.
http://dx.doi.org/10.30773/pi.2020.0401