Measuring dissociation across adolescence and adulthood: developing the short-form Černis Felt Sense of Anomaly scale (ČEFSA-14).

IF 2 4区 心理学 Q3 PSYCHOLOGY, CLINICAL
Behavioural and Cognitive Psychotherapy Pub Date : 2024-03-01 Epub Date: 2023-11-06 DOI:10.1017/S1352465823000498
Emma Černis, Bao S Loe, Katie Lofthouse, Polly Waite, Andrew Molodynski, Anke Ehlers, Daniel Freeman
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引用次数: 0

Abstract

Background: Dissociation may be important across many mental health disorders, but has been variously conceptualised and measured. We introduced a conceptualisation of a common type of dissociative experience, 'felt sense of anomaly' (FSA), and developed a corresponding measure, the Černis Felt Sense of Anomaly (ČEFSA) scale.

Aims: We aimed to develop a short-form version of the ČEFSA that is valid for adolescent and adult respondents.

Method: Data were collected from 1031 adult NHS patients with psychosis and 932 adult and 1233 adolescent non-clinical online survey respondents. Local structural equation modelling (LSEM) was used to establish measurement invariance of items across the age range. Ant colony optimisation (ACO) was used to produce a 14-item short-form measure. Finally, the expected test score function derived from item response theory modelling guided the establishment of interpretive scoring ranges.

Results: LSEM indicated 25 items of the original 35-item ČEFSA were age invariant. They were also invariant across gender and clinical status. ACO of these items produced a 14-item short-form (ČEFSA-14) with excellent psychometric properties (CFI=0.992; TLI=0.987; RMSEA=0.034; SRMR=0.017; Cronbach's alpha=0.92). Score ranges were established based on the expected test scores at approximately 0.7, 1.25 and 2.0 theta (equivalent to standard deviations above the mean). Scores of 29 and above may indicate elevated levels of FSA-dissociation.

Conclusions: The ČEFSA-14 is a psychometrically valid measure of FSA-dissociation for adolescents and adults. It can be used with clinical and non-clinical respondents. It could be used by clinicians as an initial tool to explore dissociation with their clients.

测量青春期和成年期的分离:制定简短的Černis异常感觉量表(ČEFSA-14)。
背景:在许多心理健康障碍中,分离可能很重要,但人们对其进行了不同的概念化和衡量。我们引入了一种常见类型的解离体验的概念,即“感觉异常”(FSA),并开发了相应的测量方法,Černis感觉异常量表(ČEFSA)。目的:我们旨在开发一个适用于青少年和成人受访者的ČEFSA的简短版本。方法:从1031名成年NHS精神病患者和932名成人和1233名青少年非临床在线调查受访者中收集数据。局部结构方程建模(LSEM)用于建立项目在整个年龄范围内的测量不变性。蚁群优化(ACO)被用于产生一个14项的简短度量。最后,从项目反应理论模型推导出的期望测试得分函数指导了解释性得分范围的建立。结果:LSEM显示,在原有的35项ČEFSA中有25项是年龄不变的。它们在不同性别和临床状态下也是不变的。这些项目的ACO产生了一个14个项目的简式(ČEFSA-14),具有良好的心理测量特性(CFI=0.992;TLI=0.987;RMSEA=0.034;SRMR=0.017;Cronbachα=0.92)。分数范围是基于预期测试分数在0.7、1.25和2.0θ(相当于高于平均值的标准差)下建立的。29分及以上可能表明FSA解离水平升高。结论:ČEFSA-14是青少年和成人FSA解离的一种心理测量学有效指标。它可以用于临床和非临床应答者。它可以被临床医生用作探索与客户分离的初始工具。
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来源期刊
CiteScore
3.50
自引率
5.60%
发文量
82
期刊介绍: An international multidisciplinary journal aimed primarily at members of the helping and teaching professions. Behavioural and Cognitive Psychotherapy features original research papers, covering both experimental and clinical work, that contribute to the theory, practice and evolution of cognitive and behaviour therapy. The journal aims to reflect and influence the continuing changes in the concepts, methodology, and techniques of behavioural and cognitive psychotherapy. A particular feature of the journal is its broad ranging scope - both in terms of topics and types of study covered. Behavioural and Cognitive Psychotherapy encompasses most areas of human behaviour and experience, and represents many different research methods, from randomized controlled trials to detailed case studies.
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