KMID : 1221920220150030037
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Journal of Korean Critical Care Nursing 2022 Volume.15 No. 3 p.37 ~ p.50
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Item analysis of the Korean version of the Intensive Care Experience Questionnaire: Using the Rasch Model based on Item Response Theory
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Kang Ji-Yeon
Kim Min-Hui
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Abstract
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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.
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KEYWORD
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Intensive Care Units, Patients, Reproducibility of Results, Surveys and Questionnaires
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