Wakely Hannah, Radakovic Ratko, Bateman Andrew, Simblett Sara, Fish Jessica, Gracey Fergus
Faculty of Medicine and Health Sciences, Cambridgeshire and Peterborough NHS Foundation Trust, University of East Anglia, Norwich, United Kingdom.
The Euan MacDonald Centre for Motor Neurone Disease, University of Edinburgh, Edinburgh, United Kingdom.
Front Hum Neurosci. 2022 Mar 2;16:767367. doi: 10.3389/fnhum.2022.767367. eCollection 2022.
The aim of this study was to assess the psychometric properties of the revised self-rated version of the Dysexecutive Questionnaire (DEX-R) within a non-clinical sample.
The study was hosted online, with 140 participants completing the DEX-R, GAD-2 and PHQ-2. Sixty participants also completed the FrSBe, with 99 additionally completing the DEX-R again 3 weeks later. Correlations with demographic factors and symptoms of anxiety and depression were conducted. Rasch and factor analysis were also used to explore underlying subconstructs.
The DEX-R correlated highly with the FrSBe, indicating sound concurrent validity. Internal consistency, split-half reliability and test-retest reliability were excellent. Age and symptoms of depression and anxiety correlated with DEX-R scores, with older age associated with less dysexecutive problems. The Rasch analysis confirmed the multidimensionality of the rating scale, and a three-factor structure was found relating to activation-self-regulatory, cognitive and social-emotional processes. Frequencies of responses on DEX-R items varied, many were not fully endorsed indicating specific relevance of most but not all items to patients.
Interpretations of DEX-R ratings of dysexecutive problems should consider mood and individual variation. Systematic comparison of DEX-R responses between healthy and clinical groups could help identify a suitable cut off for dysexecutive symptoms.
本研究旨在评估非临床样本中修订后的执行功能障碍问卷自评版（DEX-R）的心理测量特性。
该研究通过网络进行，140名参与者完成了DEX-R、广泛性焦虑障碍-2项量表（GAD-2）和患者健康问卷-2项量表（PHQ-2）。60名参与者还完成了额叶系统行为量表（FrSBe），99名参与者在3周后再次完成了DEX-R。对其与人口统计学因素以及焦虑和抑郁症状进行了相关性分析。还采用了拉施分析和因子分析来探索潜在的子结构。
DEX-R与FrSBe高度相关，表明具有良好的同时效度。内部一致性、分半信度和重测信度都非常好。年龄以及抑郁和焦虑症状与DEX-R得分相关，年龄越大，执行功能障碍问题越少。拉施分析证实了该评定量表的多维性，并发现了一个与激活自我调节、认知和社会情感过程相关的三因素结构。DEX-R项目的回答频率各不相同，许多项目未得到充分认可，这表明大多数但并非所有项目与患者具有特定相关性。
对DEX-R评定的执行功能障碍问题的解释应考虑情绪和个体差异。对健康组和临床组之间的DEX-R回答进行系统比较，有助于确定执行功能障碍症状的合适临界值。
