한국어판 알츠하이머병 지식 측정도구의 신뢰도와 타당도

• Published in: Journal of Korean Academy of Nursing Vol. 45; no. 1; pp. 107 - 117
• Main Authors: 김은주(Kim, Eun Joo), 정지영(Jung, Ji-young)
• Format: Journal Article
• Language: Korean
• Published: 한국간호과학회 2015
• Subjects: Health literacy; 건강정보 이해능력; 신뢰도와 타당도; Alzheimer disease; Reliability and validity; 알츠하이머병
• ISSN: 2005-3673; 2093-758X

Purpose: The purpose of this study was to evaluate the psychometric properties of the Korean version of the Alzheimer's Disease Knowledge Scale (ADKS-K) to determine its applicability to Korean adults. Methods: Cross-cultural validity was performed according to Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN). The Kuder-Richardson Formula 20 for internal consistency and Intraclass Correlation Coefficient (ICC) for test-retest reliability were conducted. Content validity, criterion related validity and construct validity were evaluated. The Classical Test Theory (CTT) model and the Item Response Theory (IRT) model were applied in performing the item analysis. Results: The KR 20 was .71, and the ICC was .90, indicating that the ADKS-K has internal consistency and stability reliability. Thirty items of the ADKS-K had significant Content Validity Ratio (CVR) values, i.e., mean of 0.82 and range of 0.60~1.00. Mean item difficulty and discrimination indices calculated by TestAn program were 0.63 and 0.23, respectively. Mean item difficulty and discrimination indices calculated by BayesiAn program were -0.60 and 0.77, respectively. These tests indicate that ADKS-K has an acceptable level of difficulty and discriminating efficiency. Conclusion: Results suggest that ADKS-K has the potential to be a proper instrument for assessing AD knowledge in Korean adults.