Psychometric Properties of the WBIS/M in a Representative Prebariatric Sample: Evidence for an Improved 10-Item Version.

IF 3.9 3区医学 Q2 ENDOCRINOLOGY & METABOLISM

Obesity Facts Pub Date : 2024-01-01 Epub Date: 2024-02-13 DOI:10.1159/000537689

Simon Schraven, Claudia Hübner, Janina Eichler, Thomas Mansfeld, Johannes Sander, Florian Seyfried, Stefan Kaiser, Arne Dietrich, Ricarda Schmidt, Anja Hilbert

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引用次数: 0

Abstract

Introduction: The Weight Bias Internalization Scale and the Modified Weight Bias Internalization Scale are well-established self-report questionnaires for assessing weight bias internalization, which is widespread among bariatric patients. However, among this group, psychometric properties of the Weight Bias Internalization Scale have only been examined in small samples showing unsatisfactory model fit and have not been explored for the modified questionnaire.

Methods: This study psychometrically evaluated and compared the Weight Bias Internalization Scale and Modified Weight Bias Internalization Scale in a large sample of prebariatric patients (N = 825, mean age = 46.75 years, SD = 11.55) regarding item characteristics, model fit to unidimensionality, reliability, construct validity, and measurement invariance.

Results: Item 4 of both questionnaires showed low corrected item-total correlations (<0.40) and was therefore removed from the scales. The new 10-item versions showed improved item characteristics, internal consistency, model fit to unidimensionality, and convergent and divergent validity when compared to the 11-item versions. The best psychometric properties were found for the 10-item version of the Modified Weight Bias Internalization Scale.

Conclusion: The 10-item version of the Modified Weight Bias Internalization Scale surpasses the other versions studied in all psychometric properties. Therefore, it should be used in prebariatric patients to detect weight bias internalization and provide them with psychological interventions that could improve bariatric surgery outcomes.

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WBIS/-M 在肥胖前代表性样本中的心理计量特性--改进版 10 个项目的证据。

导言：体重偏差内化量表和修正体重偏差内化量表是评估体重偏差内化的成熟自我报告问卷，在减肥患者中广泛使用。然而，在这一群体中，体重偏差内化量表的心理测量特性仅在小样本中进行过研究，结果显示模型拟合效果并不理想，而且尚未对修改后的问卷进行探讨。方法本研究在减肥前患者的大样本（样本数=825，平均年龄=46.75岁，SD=11.55）中，就项目特征、单维度模型拟合、信度、建构效度和测量不变性等方面，对体重偏差内化量表和修订版体重偏差内化量表进行了心理计量学评估和比较。结果两份问卷的项目 4 均显示出较低的校正项目-总相关性 (

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Obesity Facts 医学-内分泌学与代谢

CiteScore

6.80

自引率

5.60%

发文量

审稿时长

6-12 weeks

期刊介绍： ''Obesity Facts'' publishes articles covering all aspects of obesity, in particular epidemiology, etiology and pathogenesis, treatment, and the prevention of adiposity. As obesity is related to many disease processes, the journal is also dedicated to all topics pertaining to comorbidity and covers psychological and sociocultural aspects as well as influences of nutrition and exercise on body weight. The editors carefully select papers to present only the most recent findings in clinical practice and research. All professionals concerned with obesity issues will find this journal a most valuable update to keep them abreast of the latest scientific developments.