Korean Journal of Biological Psychiatry (생물정신의학)

The Korean Society of Biological Psychiatry (대한생물정신의학회)
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Reliability and Validity of the Fatigue Severity Scale among University Student in South Korea

대학교 재학생에서 Fatigue Severity Scale의 신뢰도 및 타당도 연구

  • Lee, Junghyun H. (Division of Life and Pharmaceutical Sciences, Ewha Womans University) ;
  • Jeong, Hyeonseok S. (Interdisciplinary Program in Neuroscience, Seoul National University College of Natural Sciences) ;
  • Lim, Soo Mee (Department of Radiology and Medical Research Institute, Ewha Womans University School of Medicine) ;
  • Cho, Han Byul (Interdisciplinary Program in Neuroscience, Seoul National University College of Natural Sciences) ;
  • Ma, Ji-Young (Interdisciplinary Program in Neuroscience, Seoul National University College of Natural Sciences) ;
  • Ko, Eun (Interdisciplinary Program in Cognitive Science, Seoul National University College of Humanities) ;
  • Im, Jooyeon J. (Interdisciplinary Program in Neuroscience, Seoul National University College of Natural Sciences) ;
  • Lee, Sun Hea (Division of Life and Pharmaceutical Sciences, Ewha Womans University) ;
  • Bae, Sujin (The Brain Institute, University of Utah) ;
  • Lee, Yu-Jin (Department of Psychiatry, Seoul National University College of Medicine) ;
  • Lyoo, In Kyoon (Division of Life and Pharmaceutical Sciences, Ewha Womans University) ;
  • Jeong, Do-Un (Department of Psychiatry, Seoul National University College of Medicine)
  • 이정현 (이화여자대학교 생명약학부) ;
  • 정현석 (서울대학교 자연과학대학 뇌과학협동과정) ;
  • 임수미 (이화여자대학교 의과대학 의학전문대학원 영상의학과학교실) ;
  • 조한별 (서울대학교 자연과학대학 뇌과학협동과정) ;
  • 마지영 (서울대학교 자연과학대학 뇌과학협동과정) ;
  • 고은 (서울대학교 인문대학 인지과학협동과정) ;
  • 임주연 (서울대학교 자연과학대학 뇌과학협동과정) ;
  • 이선혜 (이화여자대학교 생명약학부) ;
  • 배수진 (미국 유타대학교 뇌연구소) ;
  • 이유진 (서울대학교 의과대학 정신건강의학교실) ;
  • 류인균 (이화여자대학교 생명약학부) ;
  • 정도언 (서울대학교 의과대학 정신건강의학교실)
  • Received : 2012.12.12
  • Accepted : 2012.12.26
  • Published : 2013.02.28
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Abstract

Objectives There are only a limited number of studies on instruments assessing fatigue in university students, although fatigue exerts negative influences on their health and academic performances and fatigue-related complaints are more frequently reported in young adults than middle-aged adults. The aim of this study was to validate the 9-item Fatigue Severity Scale (FSS) among university students including both undergraduate and graduate students in South Korea. Methods A total of 176 university students completed a battery of self-report questionnaires, including the FSS, the Brief Fatigue Inventory (BFI), the Beck Depression Inventory-II (BDI-II), the Beck Anxiety Inventory (BAI), the Medical Outcomes Study Short Form 36 version 2 (MOS-SF36v2), and the Inclusion of Community in the Self Scale (ICS). The data were collected from February of 2012 to June of 2012. The reliability, convergent validity, divergent validity, and exploratory factor analyses were conducted to assess psychometric properties of the FSS. Results The mean FSS score was 3.20 (standard deviation = 1.43). The FSS demonstrated an excellent internal consistency (Cronbach's ${\alpha}$ = 0.93) and item-total correlations ranged from 0.56 to 0.90. Correlations of the FSS with the BFI (r = 0.71, p < 0.01), BDI-II (r = 0.54, p < 0.01), BAI (r = 0.46, p < 0.01), MOS-SF36v2 physical component summary (r = -0.28, p < 0.01), MOS-SF36v2 mental component summary (r = -0.55, p < 0.01), and ICS (Spearman's rho = -0.07, p = 0.33) showed acceptable convergent and divergent validity. Exploratory factor analysis defined one underlying factor (eigenvalue = 5.67) that explained 93.50% of the total variance. Conclusions To the best of our knowledge, this is the first study to investigate reliability and validity of the FSS in university students. The FSS exhibits good psychometric properties for evaluation of fatigue among university students in South Korea. Since the FSS is easy to administer, score, and interpret, it could be a useful tool in research and practice for assessing fatigue among university students.

Keywords

References

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