Yonsei Med J.  2017 Jan;58(1):226-233. 10.3349/ymj.2017.58.1.226.

Reliability and Validity of the Korean Version of the Lifetime Stressor Checklist-Revised in Psychiatric Outpatients with Anxiety or Depressive Disorders

Affiliations
  • 1Department of Psychiatry, Hanyang University College of Medicine, Seoul, Korea. dkim9289@hanyang.ac.kr
  • 2Department of Counseling Psychology, Honam University, Gwangju, Korea.
  • 3Workplace Mental Health Institute, Gangbuk Samsung Medical Center, Seoul, Korea.

Abstract

PURPOSE
Traumatic events and adverse stressful experiences are major etiological factors in a wide variety of physical and mental disorders. Developing psychological instruments that can be easily administered and that have good psychometric properties have become an integral part for research and practice. This study investigated the reliability and validity of the Korean version of the Lifetime Stressor Checklist-Revised (LSC-R) in a consecutive sample of psychiatric outpatients. The LSC-R is a 30-item self-reporting questionnaire examining lifetime traumatic and non-traumatic stressors.
MATERIALS AND METHODS
A final sample of 258 outpatients with anxiety or depressive disorders was recruited at the psychiatric department of a university-affiliated teaching hospital. Self-reported data included the Life Events Checklist (LEC), the Zung Self-Rating Depression and Anxiety Scales, and the Impact of Events Scale-Revised, in addition to the LSC-R. A convenience sample of 50 college students completed the LSC-R on two occasions separated by a three week-interval for test-retest reliability.
RESULTS
Mean kappa for temporal stability was high (κ=0.651) and Cronbach alpha was moderate (α=0.724). Convergent validity was excellent with corresponding items on the LEC. Concurrent validity was good for symptoms of post-traumatic stress disorder, depression, and anxiety. An exploratory factor analysis revealed that 11 factors explained 64.3 % of the total variance.
CONCLUSION
This study demonstrated good psychometric properties of the Korean version of the LSC-R, further supporting its use in clinical research and practice with a Korean speaking population.

Keyword

Trauma; post-traumatic stress disorder; measurement; life events; assessment

MeSH Terms

Adult
Anxiety/*diagnosis/epidemiology
*Checklist
Depression/diagnosis/epidemiology
Depressive Disorder/*diagnosis/epidemiology
Factor Analysis, Statistical
Female
Humans
Male
Outpatients
Psychiatric Status Rating Scales
Psychometrics
Reproducibility of Results
Republic of Korea/epidemiology
Stress Disorders, Post-Traumatic/*diagnosis/epidemiology
*Surveys and Questionnaires

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