title: Diagnostic validity and reliability of a Korean version of the Parent and Adolescent General Behavior Inventories.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the validity and reliability of a Korean version of the Parent General Behavior Inventory-10-item Mania Scale (P-GBI-10M) and the Adolescent General Behavior Inventory (A-GBI) for bipolar and depressive disorder in youths.
  
  
  METHODS
  Ninety-two subjects with mood disorder and their parents were recruited from September 2011 to June 2013 through the Department of Psychiatry at the Asan Medical Center, Seoul, Korea. In addition, 125 community participants were recruited through two middle schools and one high school in Seoul. The parents of subjects completed the Parent-version Mood Disorder Questionnaire (P-MDQ), P-GBI-10M and Attention-deficit/hyperactivity disorder Rating Scale (ARS). Adolescents complete the 76-item A-GBI, Beck Depression Inventory (BDI), and Adolescent version of the Mood Disorder Questionnaire (A-MDQ).
  
  
  RESULTS
  Different profiles were evident between the clinic-referred group and the community control, including different P-GBI-10M (t=3.07, p=0.003), A-GBI Depressive (t=4.99, p<0.001), Hypomanic/Biphasic subscales (t=3.17, p=0.002), and BDI (t=4.76, p<0.001) scores. The A-GBI Depressive subscale score (t=3.02, p=0.003), BDI score (t=2.12, p=0.037) and A-GBI Hypomanic/Biphasic subscale score (t=2.71, p=0.008) were significantly different between patients with bipolar disorder and those with depressive disorder. Of the 73 items of the Depressive and Hypomanic/Biphasic subscales of the A-GBI, eight discriminated between bipolar and depressive disorder. Furthermore, A-GBI Depressive subscale scores were significantly correlated with BDI (r=0.81, p<0.001), A-GBI Hypomanic/Biphasic subscale (r=0.88, p<0.001), A-MDQ (r=0.58, p<0.001), P-MDQ (r=0.22, p=0.005), and ARS (r=0.26, p<0.001) scores. Cronbach's α of the A-GBI was 0.98.
  
  
  CONCLUSIONS
  The Korean version of the Parent and Adolescent General Behavior Inventories showed excellent internal consistency, fair-to-good construct, and discriminant validity.
authors: Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
authors: Hyun-Jeong
authors: HJ
authors: Lee
authors: Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
authors: Yeonho
authors: Y
authors: Joo
authors: Department of Psychology and Psychiatry, University of NC at Chapel Hill, Chapel Hill, NC.
authors: Eric A
authors: EA
authors: Youngstrom
authors: Department of Psychiatry, The Commonwealth Medical College of Pennsylvania, Scranton, PA.
authors: Sun Young
authors: SY
authors: Yum
authors: Division of Child and Adolescent Psychiatry, Department of Psychiatry, Johns Hopkins University, Baltimore, MD.
authors: Robert L
authors: RL
authors: Findling
authors: Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. Electronic address: shingubi@amc.seoul.kr.
authors: Hyo-Won
authors: HW
authors: Kim
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D044466:Asian People / Q000523:psychology; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis; D001714:Bipolar Disorder / Q000175:diagnosis*; D016022:Case-Control Studies; D002648:Child; D003866:Depressive Disorder / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D019964:Mood Disorders / Q000175:diagnosis; D010290:Parents / Q000523:psychology*; D010555:Personality Inventory / Q000592:standards*; D011237:Predictive Value of Tests; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D056910:Republic of Korea; D014177:Translations; D055815:Young Adult