Department of Psychology, University of Nevada-Las Vegas, USA.
Arch Clin Neuropsychol. 2010 Dec;25(8):781-90. doi: 10.1093/arclin/acq073. Epub 2010 Sep 27.
Research suggests that IQ profiles identify subgroups of children with traumatic brain injury (TBI) based on sparing and impairment of cognitive abilities, but little information is available regarding whether these subgroups are differentiated on variables that are important for TBI outcome, such as behavioral functioning. The current study examined behavioral disturbances in 123 children with TBI in association with profiles of intellectual abilities identified using cluster analysis. On the basis of prior research, four clusters were hypothesized. Consistent with the hypothesis, cluster analysis identified four IQ clusters in the current sample. Comparisons among the clusters on behavior variables assessed from the Behavioral Assessment System for Children parent ratings indicated significant differences among the four IQ clusters, with the most impaired cluster exhibiting the severest disturbances. Results of the current study indicate that subgroups of children with TBI can be identified using IQ tests and that these subgroups are stable across different samples, and more importantly are moderately associated with behavioral disturbances that persist during the recovery period.
研究表明，智商（IQ）分布可以根据认知能力的保留和损伤程度，将创伤性脑损伤（TBI）患儿分为亚组，但关于这些亚组是否在与 TBI 结果相关的重要变量（如行为功能）上存在差异，相关信息十分有限。本研究使用聚类分析，检查了 123 名 TBI 患儿的行为障碍与使用智力能力分布识别相关的情况。基于先前的研究，提出了四个聚类的假设。与假设一致的是，聚类分析在当前样本中确定了四个 IQ 聚类。对来自儿童行为评估系统父母评定的行为变量进行聚类间比较，结果表明四个 IQ 聚类之间存在显著差异，损伤最严重的聚类表现出最严重的障碍。本研究结果表明，可以使用 IQ 测试来识别 TBI 患儿的亚组，这些亚组在不同的样本中是稳定的，更重要的是，它们与恢复期持续存在的行为障碍中度相关。
