Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM , Villejuif, France.
Unité de Traitement des Troubles des Conduites Alimentaires, Département de Psychiatrie et d'Addictologie, Hôpital Paul Brousse , Villejuif, France.
J Clin Exp Neuropsychol. 2020 Dec;42(10):1059-1071. doi: 10.1080/13803395.2020.1842333. Epub 2020 Dec 4.
: People diagnosed with Anorexia Nervosa (AN) are at risk for poor cognitive flexibility and excessive attention to detail. These difficulties are traditionally quantified using neuropsychological tests. These tests do not capture the subjective repercussions of these cognitive styles. The Detail and Flexibility Questionnaire (DFlex) has been specifically developed to measure these repercussions. The aim of this study was to evaluate the psychometric properties of the French version of this scale (F-DFlex) and to adapt it if needed. : The instrument factor structure, internal consistency, convergent, and discriminant validity were assessed in a sample of 107 French women AN inpatients. For convergent validity, associations between F-DFlex scores, perceived levels of autistic traits (Autism Quotient questionnaire - AQ) and eating disorders symptomatology (Eating Disorder Examination Questionnaire - EDE-Q), as well as neuropsychological evaluations (Wisconsin Card Sorting Test - WCST, Rey Complex Figure - RCF) were tested. Discriminant validity was assessed by comparing F-DFlex scores of the patients with a chronic versus non-chronic illness. : The results of the exploratory factorial analysis led to the removal of four items. Internal consistency indices of this shortened version were good. Correlation coefficients directions and values between F-DFlex factors and relevant AQ Switching and Detail subscores were satisfactory, indicating good convergent validity. F-DFlex Rigidity scores were associated with the WCST percentage of perseverative errors, but the F-DFlex Attention to Detail scores were not associated with the RCF central coherence index. F-DFlex scores were associated with the severity of eating disorders symptomatology independently of BMI, illness duration, or anxiety, and depression. : This study indicates good psychometric properties of this new version of the DFlex. The F-DFlex appears as a promising self-report screening tool of important cognitive dimensions for use in clinical management of people diagnosed with AN.
:被诊断患有神经性厌食症(AN)的人面临认知灵活性差和过度关注细节的风险。这些困难传统上通过神经心理学测试来量化。这些测试无法捕捉到这些认知风格的主观影响。详细和灵活性问卷(DFlex)是专门为衡量这些影响而开发的。本研究的目的是评估该量表的法语版本(F-DFlex)的心理测量特性,并在需要时进行调整。:在 107 名法国女性神经性厌食症住院患者的样本中,评估了该工具的因子结构、内部一致性、收敛和判别有效性。为了评估收敛有效性,测试了 F-DFlex 分数与自闭症特征感知水平(自闭症商数问卷-AQ)和饮食障碍症状(饮食障碍检查问卷-EDE-Q)之间的相关性,以及神经心理学评估(威斯康星卡片分类测试-WCST, Rey 复杂图形-RCF)。通过比较慢性和非慢性疾病患者的 F-DFlex 评分来评估判别有效性。:探索性因素分析的结果导致删除了四个项目。这个简短版本的内部一致性指标良好。F-DFlex 因子与相关 AQ 转换和细节子分数之间的相关系数方向和值令人满意,表明具有良好的收敛有效性。F-DFlex 刚性分数与 WCST 持续错误的百分比相关,但 F-DFlex 对细节的注意力分数与 RCF 中心连贯性指数无关。F-DFlex 评分与饮食障碍症状的严重程度相关,独立于 BMI、疾病持续时间或焦虑和抑郁。:本研究表明该 DFlex 新版本具有良好的心理测量特性。F-DFlex 似乎是一种有前途的自我报告筛查工具,可用于诊断为 AN 的人的临床管理,用于衡量重要的认知维度。