Construct validity and factor structure of the difficulties in Emotion Regulation Scale among adults with severe mental illness
Construct validity and factor structure of the difficulties in Emotion Regulation Scale among adults with severe mental illness
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DOI：
10.1016/j.jpsychires.2014.07.029
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发表时间：
2014-11-01
影响因子：
4.8
通讯作者：
Oldham, John M.
中科院分区：
文献类型：
--
作者：
Fowler, J. Christopher;Charak, Ruby;Oldham, John M.
背景：情绪调节困难量表（DERS：Gratz 和 Roemer，2004）是情绪调节能力的衡量标准，具有良好的结构效度、重测可靠性和内部一致性。因素分析研究产生了不同的结果，大多数研究支持最初的 6 因素模型，而一些研究提出了替代的 5 因素模型，每一项都提出了关于缺乏情绪意识因素的心理测量有效性的问题。先前 DERS 心理测量研究的一个局限性是依赖于情绪调节损伤最小的健康受试者。目前的研究评估了大样本患有严重精神疾病（SMI）的成年精神病住院患者中 DERS 的构建效度和潜在因素结构。方法：SMI 住院患者（N = 592）在入院时完成了 DERS、接受和行动问卷（AAQ-2）、患者健康问卷（PHQ-SADS）和研究诊断访谈（SCID I/II）。结果：DERS 总分与AAQ-2 (r =.70)、PHQ-抑郁 (r =.45)、PHQ-焦虑 (r =.44) 与 PHQ-躯体化 (r = 28) 中度相关。验证性因素分析表明，五因素和六因素模型产生了等效的拟合指数。除了难以进行目标导向行为和缺乏情绪意识外，所有因素均表现出正相关。结论：DERS 是一项强有力的衡量标准，具有出色的内部一致性和良好的结构效度。鉴于六因素模型与五因素模型的等效性，在放弃六因素模型时需要谨慎，特别是考虑到使用全量程的临床研究证据。 (C) 2014 Elsevier Ltd. 保留所有权利。
Background: The Difficulties in Emotion Regulation Scale (DERS: Gratz and Roemer, 2004) is a measure of emotion-regulation capacities with good construct validity, test retest reliability and internal consistency. Factor analytic studies have produced mixed results, with the majority of studies supporting the original 6-factor model while several studies advance alternative 5-factor models, each of which raises questions about the psychometric validity of the Lack of Emotional Awareness factor. A limitation of prior psychometric studies on the DERS is the reliance on healthy subjects with minimal impairment in emotion regulation. The current study assesses the construct validity and latent factor structure of the DERS in a large sample of adult psychiatric inpatients with serious mental illness (SMI).Methods: Inpatients with SMI (N = 592) completed the DERS, Acceptance and Action Questionnaire (AAQ-2), Patient Health Questionnaire (PHQ-SADS), and research diagnostic interviews (SCID I/II) at admission.Results: DERS total scores were correlated with AAQ-2 (r =.70), PHQ-Depression (r =.45), PHQ-Anxiety (r =.44) and moderately correlated with PHQ-Somatization (r = 28). Confirmatory factor analysis indicated that five and six-factor model produced equivalent fit indices. All factors demonstrated positive correlations with the exception of difficulty engaging in goal-directed behavior and lack of emotional awareness.Conclusions: The DERS is a strong measure with excellent internal consistency and good construct validity. Caution is warranted in discarding the six-factor model given the equivalence with the five-factor model, particularly in light of the body of clinical research evidence utilizing the full scale. (C) 2014 Elsevier Ltd. All rights reserved.