J Korean Acad Child Adolesc Psychiatry.  2015 Sep;26(3):183-189. 10.5765/jkacap.2015.26.3.183.

Korean Wechsler Intelligence Scale for Children-Fourth Edition Profiles in Child and Adolescent with Attention-Deficit Hyperactivity Disorder : Retrospective Study

• Koh M
• Noh EA
• Kim HW

• KMID: 2172721
• DOI: http://doi.org/10.5765/jkacap.2015.26.3.183

Abstract

OBJECTIVES
The aim of this study was to investigate Korean Wechsler Intelligence profiles and specific abilities related to attention problem of children with attention-deficit hyperactivity disorder (ADHD).
METHODS
The Korean Wechsler Intelligence Scale for Children-fourth edition (K-WISC-IV) and Advanced Test of Attention (ATA) were administered to 91 children and adolescents (age 8.5+/-2.6 years, 73 boys) with ADHD. Pearson correlation and independent t-tests were used.
RESULTS
The means of Working Memory Index (WMI) and Processing Speed Index (PSI) showed a score of low average in K-WISC-IV. WMI scores for the K-WISC-IV showed clinically significant correlations with omission errors, commission errors, and response time variability on auditory ATA. PSI scores also showed significant correlations with response time and variability on visual ATA. In addition, significantly lower digit span backward scores were observed in hyperactive-impulsive/combined subtypes compared to inattentive subtype (t=3.60, p<.001).
CONCLUSION
Children with ADHD showed significantly lower scores in WMI and PSI which were clinically correlated with ATA scores, and hyperactive-impulsive/combined subtypes showed poorer working memory functions in WMI. Follow-up studies are proposed.

Keyword

Attention-Deficit Hyperactivity Disorder; Working Memory Function; Psychomotor Speed

MeSH Terms

Adolescent*
Child*
Follow-Up Studies
Humans
Intelligence*
Memory, Short-Term
Reaction Time
Retrospective Studies*