Jenkins Paul E, Baysen Lacin
School of Psychology and Clinical Language Sciences, University of Reading, Reading, RG6 6ES, UK.
Eat Weight Disord. 2025 Mar 20;30(1):28. doi: 10.1007/s40519-025-01741-4.
The Modified Weight Bias Internalization Scale (WBIS-M) is perhaps the most frequently used measure of internalised weight bias and has growing support for its psychometric properties. However, there is a lack of clarity regarding how many items are necessary for adequate interpretation of the WBIS-M and limited study of internalised weight bias in young adults. The aims of this study are to evaluate different versions of the WBIS-M, assessing structural and convergent validity.
The current study recruited 205 university students (aged 18-46, mean body mass index = 22.60 kg/m) in the UK and examined the factor structure, reliability, and convergent validity of the WBIS-M, looking at 11-item, 10-item, and 9-item versions.
Confirmatory factor analysis suggested that a 10-item version of the WBIS-M showed acceptable structural validity and expected correlations with relevant constructs (depression, anxiety, weight status, and eating pathology). Estimates of internal consistency reliability were high for all three versions.
Given potential problems with one item, the 10-item WBIS-M presents a measure of internalised weight bias with sound psychometric properties in young adults.
Level III, well-designed cohort study.
改良体重偏见内化量表（WBIS-M）可能是最常用的内化体重偏见测量工具，其心理测量特性也得到了越来越多的支持。然而，对于充分解释WBIS-M需要多少个项目尚缺乏明确认识，且对年轻人内化体重偏见的研究有限。本研究的目的是评估WBIS-M的不同版本，评估其结构效度和收敛效度。
本研究招募了205名英国大学生（年龄18 - 46岁，平均体重指数 = 22.60kg/m），考察了11项、10项和9项版本的WBIS-M的因子结构、信度和收敛效度。
验证性因子分析表明，10项版本的WBIS-M具有可接受的结构效度，并与相关构念（抑郁、焦虑、体重状况和饮食病理学）呈现预期的相关性。所有三个版本的内部一致性信度估计值都很高。
鉴于一个项目存在潜在问题，10项WBIS-M为年轻人内化体重偏见提供了一种具有良好心理测量特性的测量方法。
III级，设计良好的队列研究。
