Schönhals Kristine, Quittkat Hannah L, Voges Mona M, Ladwig Gritt, Holtmann Friederike-Johanna, Vocks Silja
Department of Clinical Psychology and Psychotherapy, Institute of Psychology, Osnabrück University, Osnabrück, Germany.
Front Psychol. 2024 May 28;15:1390063. doi: 10.3389/fpsyg.2024.1390063. eCollection 2024.
This study examines the psychometric properties of a German version of the Upward and Downward Physical Appearance Comparison Scales (UPACS and DACS).
A total of 2,114 participants, consisting of 1,360 women without eating disorders ( = 25.73, = 6.84), 304 men without eating disorders ( = 24.48, = 6.34), and 450 women with eating disorders ( = 27.11, = 7.21), completed the UPACS and DACS as well as further questionnaires on appearance comparisons, eating disorder pathology, and self-esteem.
Structural equation modeling confirmed the proposed one-factor structure of the original English-language version of the DACS but not of the UPACS. Both scales showed good internal consistency and test-retest reliability. The UPACS and DACS showed the expected correlations with related constructs, indicating acceptable construct validity, with some limitations for women with eating disorders.
Overall, this study indicates that the German versions of the UPACS and DACS are psychometrically suitable for assessing upward and downward physical appearance comparisons in women and men without eating disorders and women with eating disorders in research and clinical practice.
本研究考察了德文版的向上和向下身体外貌比较量表（UPACS和DACS）的心理测量特性。
共有2114名参与者，包括1360名无饮食失调的女性（年龄均值=25.73，标准差=6.84）、304名无饮食失调的男性（年龄均值=24.48，标准差=6.34）以及450名有饮食失调的女性（年龄均值=27.11，标准差=7.21），他们完成了UPACS和DACS以及关于外貌比较、饮食失调病理学和自尊的其他问卷。
结构方程模型证实了原始英文版DACS所提议的单因素结构，但未证实UPACS的单因素结构。两个量表均显示出良好的内部一致性和重测信度。UPACS和DACS与相关构念呈现出预期的相关性，表明具有可接受的结构效度，但对有饮食失调的女性存在一些局限性。
总体而言，本研究表明，德文版的UPACS和DACS在心理测量学上适用于在研究和临床实践中评估无饮食失调的女性和男性以及有饮食失调的女性的向上和向下身体外貌比较。
