University of Nevada, Las Vegas, NV 89154-5030, USA.
J Atten Disord. 2013 May;17(4):291-301. doi: 10.1177/1087054711428806. Epub 2012 Jan 27.
The current study investigated the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) cluster profiles of children with ADHD to examine the association between IQ profiles and diagnostic frequency, symptomatology, and outcome in this population.
Hierarchical cluster analysis was conducted on 189 children with a diagnosis of ADHD-inattentive (ADHD-I) and ADHD-combined (ADHD-C) subtypes. Clusters were then compared across symptom rating scale factor scores, behavioral rating scales, and achievement scores.
A five-cluster solution was extracted. One cluster was identified to have reduced processing speed relative to other WISC-IV indexes and significantly higher ratings of inattention and incidence of ADHD-I diagnosis. A second cluster had impairments in processing speed and working memory and was associated with impaired behavioral functioning.
Findings support a relationship between reduced processing speed and inattention and provide evidence that WISC-IV profiles may be helpful in predicting symptomatology and outcome in children with ADHD.
本研究调查了韦氏儿童智力量表第四版（WISC-IV）注意力缺陷多动障碍（ADHD）患儿的聚类特征，以检验该人群中智商特征与诊断频率、症状学和结果之间的关系。
对 189 名 ADHD 注意力不集中（ADHD-I）和 ADHD 混合型（ADHD-C）亚型的儿童进行了层次聚类分析。然后，根据症状评定量表因子评分、行为评定量表和成绩对聚类进行了比较。
提取了一个五聚类解决方案。一个聚类被确定为相对于其他 WISC-IV 指标处理速度较慢，并且注意力不集中的评分显著较高，ADHD-I 诊断的发生率也较高。第二个聚类在处理速度和工作记忆方面存在障碍，与行为功能障碍有关。
研究结果支持处理速度减慢与注意力不集中之间的关系，并提供了证据表明 WISC-IV 特征可能有助于预测 ADHD 儿童的症状学和结果。
