Frequent assessment of eating disorder (ED) symptoms (e.g., on a weekly basis) may guide treatment planning in clinical services, and be an invaluable tool for improving clinical research. The aim of the present study was to evaluate the psychometric properties of a brief eight-item scale designed to assess ED behaviors during the preceding week (Eating Disorder Symptom List: EDSL). Cross-sectional data were collected in a non-clinical community sample (n = 406) and cross-sectional and longitudinal data were gathered in a clinical ED sample before and after treatment with Enhanced Cognitive Behavior Therapy for eating disorders (n = 47) and weekly during treatment with Radically Open Dialectical Behavior Therapy (n = 13). The EDSL showed acceptable to good internal consistency (α = 0.72–0.82) and test-retest reliability (r = 0.88). Convergent and divergent validity was satisfactory. Also, the EDSL was sensitive to change and could detect changes between before and after treatment, as well as on a weekly basis. We conclude that the EDSL is a brief scale entailing little patient burden, and that initial analyses of the scale provide preliminary evidence of satisfactory psychometric properties. The scale can be used for repeated measures in ED treatment studies and clinics to assess change or absence of change during treatment.

中文翻译：

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饮食失调症状表 (EDSL) 的心理测量特性，这是一份用于每周评估饮食失调症状的简短问卷

频繁评估进食障碍 (ED) 症状（例如，每周一次）可以指导临床服务中的治疗计划，并且是改进临床研究的宝贵工具。本研究的目的是评估一个简短的八项量表的心理测量特性，该量表旨在评估前一周的 ED 行为（饮食失调症状列表：EDSL）。在非临床社区样本 ( n  = 406) 中收集横断面数据，并在使用增强认知行为疗法治疗进食障碍前后的临床 ED 样本中收集横断面和纵向数据 ( n  = 47) 和在接受彻底开放辩证行为疗法治疗期间每周一次 ( n = 13）。EDSL 表现出可接受的良好内部一致性（α  = 0.72–0.82）和重测信度（r  = 0.88）。收敛效度和发散效度均令人满意。此外，EDSL 对变化很敏感，可以检测治疗前后以及每周的变化。我们得出结论，EDSL 是一个简短的量表，患者负担很小，并且对量表的初步分析提供了令人满意的心理测量特性的初步证据。该量表可用于 ED 治疗研究和诊所中的重复测量，以评估治疗过程中的变化或没有变化。