Journal of the Korean Academy of Child and Adolescent Psychiatry

Korean Academy of Child and Adolescent Psychiatry (대한소아청소년정신의학회)
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Cognitive Characteristics of Attention-Deficit Hyperactivity Disorder in Korean Wechsler Intelligence Scale for Children-Fourth Edition: Focused on General Ability Index and Cognitive Proficiency Index

한국 웩슬러 아동 지능검사-4판(K-WISC-IV)에서 일반능력 지표(GAI)의 임상적 유용성: 주의력결핍 과잉행동장애 아동을 대상으로

  • Goo, Min-Je (Department of Psychiatry, School of Medicine, Wonkwang University) ;
  • Oh, Sang-Woo (Department of Psychiatry, School of Medicine, Wonkwang University) ;
  • Lee, Sang-Yeol (Department of Psychiatry, School of Medicine, Wonkwang University) ;
  • Paik, Young-Suk (Department of Psychiatry, School of Medicine, Wonkwang University) ;
  • Lee, Ji-Hea (Wonkwang Brain, Behavior and Mental Health Institute) ;
  • Hwang, Kyu-Sic (Department of Psychiatry, School of Medicine, Wonkwang University)
  • 구민제 (원광대학교 의과대학 정신건강의학교실) ;
  • 오상우 (원광대학교 의과대학 정신건강의학교실) ;
  • 이상열 (원광대학교 의과대학 정신건강의학교실) ;
  • 백영석 (원광대학교 의과대학 정신건강의학교실) ;
  • 이지혜 (원광대학교 뇌행동정신건강연구소) ;
  • 황규식 (원광대학교 의과대학 정신건강의학교실)
  • Received : 2016.08.19
  • Accepted : 2016.11.25
  • Published : 2016.12.31
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Abstract

Objective: The purpose of this study was to investigate the clinical utility of the Korean Wechsler Intelligence Scale for Children-Fourth Edition (K-WISC-IV) and General Ability Index (GAI) in children with attention-deficit hyperactivity disorder (ADHD). Methods: The GAI and Full Scale IQ (FSIQ) in K-WISC-IV were compared for a group of 79 children with ADHD and 234 normal children. The mean differences within each group were testified by the t-test and Cohen's d. The Wechsler's descriptive classifications for each GAI and FSIQ score were analyzed in the children with ADHD. Additionally, the critical value for the difference between the means of the FSIQ and GAI was calculated in the normal children. Results: The score on the GAI was higher than that on the FSIQ in the children with ADHD, with a mean difference of 2.19 points. The implications of these findings are discussed regarding the cognitive characteristics of the children with ADHD. According to Wechsler's descriptive classification, the application of the GAI showed a lower (7.59%), equal (61.65%) or higher (60.76%) prevalence of ADHD compared to the application of FSIQ. Conclusion: The implications of these findings are discussed regarding the cognitive characteristics of the children with ADHD. The GAI reflecting the attention and behavioral problems in children with ADHD could be utilized as an alternative global intelligence estimate that considers their potential for development.

Keywords

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