title: The WHO Adult ADHD Self-Report Scale: Reliability and Validity of the Korean Version.
abstract: OBJECTIVE
  A self-report scale of adult attention-deficit/hyperactivity disorder, the World Health Organization (WHO) Adult ADHD Self-Report Scale (ASRS) was developed and demonstrated good psychometric properties. The purpose of the present study is to investigate the psychometric properties of the ASRS in Korean samples.
  
  
  METHODS
  The ASRS includes 18 questions regarding the frequency of recent DSM-IV Criterion A symptoms of adult ADHD. We examined the factor structure, internal consistency, and convergent validity of the ASRS in Korean samples.
  
  
  RESULTS
  The ASRS demonstrated good internal consistency and test-retest reliability. Correlations between the ASRS and other adult ADHD measures were high, providing evidence of convergent validity. A subsequent exploratory factor analysis indicated that a two-factor solution provided the best fit.
  
  
  CONCLUSIONS
  It is expected that this scale would be helpful in clinical settings and research in Korea.
authors.affiliation: Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
authors.forename: Ji-Hae
authors.initials: JH
authors.lastname: Kim
authors.forename: Eun-Ho
authors.initials: EH
authors.lastname: Lee
authors.forename: Yoo-Sook
authors.initials: YS
authors.lastname: Joung
keywords: ASRS; Adult ADHD; Korean; Psychometric properties; Scale