title: Translation and Psychometric Evaluation of a Korean Version of the Amyotrophic Lateral Sclerosis-Specific Quality of Life - Revised.
abstract: OBJECTIVE
  The objective was to translate the Amyotrophic Lateral Sclerosis-Specific Quality of Life - Revised instrument (ALSSQOL-R) into Korean and to examine the psychometric properties of the Korean amyotrophic lateral sclerosis (ALS) population.
  
  
  METHODS
  The translation involved forward and backward translation. The psychometric properties of the Korean version of the ALSSQOL-R (K-ALSSQOL-R) were tested by patients in an ALS multidisciplinary clinic in Korea (n = 120). The internal consistency, test-retest reliability, content validity, criterion-related validity, and construct validity were evaluated.
  
  
  RESULTS
  With regard to the reliability estimate, the internal consistency (Cronbach's alpha = 0.92) and the test-retest reliability (ICC = 0.89) were good. With regard to the validity estimate, the K-ALSSQOL-R demonstrated concurrent validity with the McGill Quality of Life Single-Item Scale (r = 0.62) and the first question of the World Health Organisation QOL Instrument-Brief (WHOQOL-BREF) (r = 0.64). The convergent validity and discriminant validity were acceptable. The confirmatory factor analysis supported a six-factor model.
  
  
  CONCLUSIONS
  The K-ALSSOQL-R can be used as a reliable and valid measure of QOL among Korean ALS patients.
authors.affiliation: a Division of Nursing , Hanyang University , Seoul , Korea.|b Cell therapy Center for Intractable Disorders , Hanyang University Hospital , Seoul , Korea , and.
authors.forename: Juyeon
authors.initials: J
authors.lastname: Oh
authors.affiliation: a Division of Nursing , Hanyang University , Seoul , Korea.
authors.forename: Gwi-Ryung Son
authors.initials: GS
authors.lastname: Hong
authors.affiliation: b Cell therapy Center for Intractable Disorders , Hanyang University Hospital , Seoul , Korea , and.|c Department of Neurology, College of Medicine , Hanyang University , Seoul , Korea.
authors.forename: Seung Hyun
authors.initials: SH
authors.lastname: Kim
authors.affiliation: a Division of Nursing , Hanyang University , Seoul , Korea.
authors.forename: Jung A
authors.initials: JA
authors.lastname: Kim
mesh_terms: D000328:Adult; D000690:Amyotrophic Lateral Sclerosis / Q000453:epidemiology* / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000379:methods*; D011788:Quality of Life / Q000523:psychology*; D015203:Reproducibility of Results; D056910:Republic of Korea / Q000453:epidemiology; D013223:Statistics as Topic; D014175:Translating
keywords: Amyotrophic Lateral Sclerosis; psychometrics; quality of life; reliability and validity; translation