Factor Analysis of the Self-Report Dysexecutive (DEX-S) Questionnaire
Factor Analysis of the Self-Report Dysexecutive (DEX-S) Questionnaire
复制标题
自述执行不良（DEX-S）问卷的因素分析
作者：
B. Mooney;C. Walmsley;K. McFarland
执行困难自评问卷(DEX-S)是最近发展起来的一种标准化的自我报告量表，用于测量与执行功能相关的行为困难，如冲动、抑制控制、监控和计划。很少有研究检验它的结构效度，特别是它在各种临床和非临床人群中潜在的更广泛应用。本研究以非临床组(N=293)和临床组(N=49)被试为样本，检验了DEX-S问卷的因素结构。一系列的因素分析被评估以确定该量表的最佳因素解决方案。研究发现，这是一个由抑制、意图、社会调节和抽象问题解决四个因素构成的四因素解决方案。前2个因素复制了以前研究中发现的5个因素解决方案中的因素，这些因素检查了特定的亚群。虽然还需要进一步的研究来评估一系列亚群中的因素结构，但这项研究支持这样的观点，即DEX具有足够的因素结构，足以在更广泛的背景下使用，而不仅仅是在神经科或脑损伤患者中使用。总体而言，在更广泛的背景下，4因素解决方案被推荐为最稳定和最节俭的解决方案。
The self-rating Dysexecutive Questionnaire (DEX-S) is a recently developed standardized self-report measure of behavioral difficulties associated with executive functioning such as impulsivity, inhibition control, monitoring, and planning. Few studies have examined its construct validity, particularly for its potential wider use across a variety of clinical and nonclinical populations. This study examines the factor structure of the DEX-S questionnaire using a sample of nonclinical (N = 293) and clinical (N = 49) participants. A series of factor analyses were evaluated to determine the best factor solution for this scale. This was found to be a 4-factor solution with factors best described as inhibition, intention, social regulation, and abstract problem solving. The first 2 factors replicate factors from the 5-factor solutions found in previous studies that examined specific subpopulations. Although further research is needed to evaluate the factor structure within a range of subpopulations, this study supports the view that the DEX has the factor structure sufficient for its use in a wider context than only with neurological or head-injured patients. Overall, a 4-factor solution is recommended as the most stable and parsimonious solution in the wider context.