Dimensions of the Dysexecutive Questionnaire (DEX) examined using Rasch analysis
Dimensions of the Dysexecutive Questionnaire (DEX) examined using Rasch analysis
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使用 Rasch 分析检查执行不良问卷 (DEX) 的维度
DOI：
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发表时间：
2011
影响因子：
2.7
通讯作者：
A. Bateman
中科院分区：
文献类型：
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作者：
S. Simblett;A. Bateman
执行功能障碍是一个非常宽泛的术语，用于描述一系列相互作用的高级认知、情感和行为困难，常见于后获得性脑损伤（ABI）后。许多人认为，执行功能的概念应该被细分为几个独立的维度。在本研究中，我们探索了一种用于评估执行功能水平的工具的维度结构，即执行障碍问卷（Burgess, Alderman, Wilson, Evans, & Emslie, 1996），以便为执行功能的理论概念提供信息，并提高康复中心的测量精度。对363名ABI患者对DEX的反应进行了Rasch分析。总的来说，问卷并没有作为执行功能的单维、间隔水平量表，这表明它测量了不止一种心理结构。大多数先前使用因子分析提出的子量表，包括DEX手册中建议的子量表，也不能作为一维区间水平量表。提出了几个新的子量表，与执行功能不同维度的理论概念保持一致，并建议修改DEX中一些项目的措辞和评分。这些结果为今后评价执行功能康复方案提供了一个平台。
Executive dysfunction is very broad term used to capture a range of interacting high-level cognitive, emotional and behavioural difficulties, commonly seen after acquired brain injury (ABI). Many argue that the concept of executive functioning should be subdivided into several separate dimensions. In this study we explore the dimensional structure of a tool designed to assess level of executive functioning, the Dysexecutive (DEX) Questionnaire (Burgess, Alderman, Wilson, Evans, & Emslie, 1996), in order to inform theoretical conceptualisations of executive functioning and improve measurement precision in rehabilitation centres. Rasch analysis was undertaken on the responses of 363 people with ABI to the DEX. Overall, the questionnaire did not perform as a unidimensional, interval-level scale of executive functioning, suggesting that it measures more than one psychological construct. Most subscales previously proposed using factor analysis, including those suggested in the DEX manual, did not perform as unidimensional interval-level scales either. Several new subscales in keeping with theoretical conceptualisations of the different dimensions of executive functioning are proposed, alongside suggestions for revision of the wording and scoring of some of the items in the DEX. These results provide a platform for future evaluation of executive function rehabilitation programmes.