Item analysis of the Korean version of the Intensive Care Experience Questionnaire: Using the Rasch Model based on Item Response Theory
10.34250/jkccn.2022.15.3.37
- Author:
Jiyeon KANG
1
;
Minhui KIM
Author Information
1. Professor, College of Nursing, Dong-A University
- Publication Type:Original Article
- From:
Journal of Korean Critical Care Nursing
2022;15(3):37-50
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Purpose:: This study aimed to examine the item characteristics of the Korean version of the intensive care experience questionnaire (K-ICEQ) using the Rasch analysis model of the item response theory.
Methods:: In this methodological study, the validity of the scale was examined, and a secondary analysis was conducted using cohort data of patients who were discharged from the intensive care units (ICU). Data from 891 patients who responded to the K-ICEQ upon ICU discharge were analyzed. The WINSTEP program was used to analyze item characteristics, including item difficulty, fit indices, appropriateness scale, and separation reliability.
Results:: The difficulty level of all 26 items of the K-ICEQ was appropriate, and the fit indices of the 25 items, except for item 18, were good. The 5-point scale of the K-ICEQ was not appropriate in the three subscales. The item separation reliability was good in all subscales, but did not meet the criteria in terms of respondents.
Conclusion:: The results of examining the item characteristics of the K-ICEQ revealed a good degree of difficulty, fitness, and item separation reliability. To increase the validity of the K-ICEQ, we suggest the rearrangement of the overall item order, modification of the item description of the “recall of experience” subscale, and reduction of the scale response level.
