Riccio Cynthia A, Blakely Alane, Yoon Myeungsun, Reynolds Cecil R
Department of Educational Psychology, Texas A&M University, College Station, TX 77843-4225, USA.
Appl Neuropsychol Adult. 2013;20(2):155-8. doi: 10.1080/09084282.2012.670169. Epub 2013 Jan 11.
Previous evaluation of the Comprehensive Trail-Making Test (CTMT) using a confirmatory factor analysis (CFA) revealed that for children, a two-factor model provided a better fit than did a one-factor model. The purpose of this study was to explore whether these findings suggested a developmental factor structure or if the two-factor structure also would be supported for adults. CFA was conducted using M-plus to examine the factor structure for adults in the standardization sample using all five trails tasks from the CTMT. The findings of the CFA indicated an excellent fit for the two-factor model. In contrast, the one-factor structure (i.e., use of a composite score) was not supported. Results were the same when younger (younger than 50 years of age) and older (50 years old or older) adults were considered separately. These data suggest that a single score may not be a valid representation of executive functioning. The results support a two-factor structure that represents attention/sequencing and set switching/inhibition.
先前使用验证性因素分析（CFA）对综合连线测试（CTMT）进行的评估显示，对于儿童而言，两因素模型比单因素模型拟合度更好。本研究的目的是探讨这些发现是否表明存在一种发育因素结构，或者两因素结构是否也适用于成年人。使用M-plus进行CFA，以检验标准化样本中成年人使用CTMT所有五项连线任务的因素结构。CFA的结果表明两因素模型拟合度极佳。相比之下，单因素结构（即使用综合分数）未得到支持。分别考虑年龄较小（50岁以下）和年龄较大（50岁及以上）的成年人时，结果相同。这些数据表明单一分数可能无法有效代表执行功能。结果支持一种代表注意力/序列性以及定势转换/抑制的两因素结构。
