A cross-cultural translation and validation of the Korean version of checklist individual strength (CIS) in the Korean working age population

초록

Checklist Individual Strength (CIS) is a widely used questionnaire to measure a level of the chronic fatigue syndrome. The purpose of this study was to translate CIS into Korean and evaluate the reliability and validity of a Korean version of CIS (K-CIS) for the Korean working age population. In the first experimentation of the study, four bilingual translators participated to translate CIS using a cross-cultural translation method. Then, a concurrent validity of K-CIS with the original CIS was evaluated by 28 bilingual participants. With a statistical analysis, it was confirmed that K-CIS and CIS were linguistically equivalent. In the second experimentation, 172 participants from various universities, industries, and small businesses assessed K-CIS along with two other representative fatigue questionnaires such as mKCFQ11 and SF-36. Our result of the statistical analysis using Cronbach's alpha, confirmatory factor analysis, inter-scale correlation, and correlation with other questionnaires showed that K-CIS was a valid fatigue questionnaire. Therefore, we conclude that K-CIS can be an effective tool to evaluate a severity of fatigue in the Korean working age population.

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