High correlations between measures of internalized weight bias (IWB) and body image (BI) have resulted in concerns that IWB is conceptually redundant with BI. This investigation examined the contribution of the unique variance of BI and IWB on three important, weight-related factors: self-esteem, depressive symptoms, and body shame. The study included 403 participants recruited through a Qualtrics research panel. Participants were required to be aged 18 + and have a BMI > 25. The sample contained three equally represented, self-identified racial/ethnic groups: Black non-Hispanic ( = 140), Hispanic ( = 133), and White non-Hispanic ( = 130). When BI was entered in the first step of the regression model, it accounted for 14–40% of the variance in various models; the addition of IWB in step two contributed 11–18% of unique variance. By contrast, when IWB was entered in the first step, it accounted for 25–56% of the variance in various models, with the addition of BI contributing between 0% and 2% unique variance. Therefore, even with a high correlation among the constructs of IWB and BI, IWB was able to contribute unique variance in predicting depressive symptoms, self-esteem, and body shame, and is not redundant with the construct of BI.

中文翻译：

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检查身体形象和内在体重偏差对心理健康结果的独特贡献

内在体重偏差 (IWB) 和身体形象 (BI) 测量之间的高度相关性导致人们担心 IWB 在概念上与 BI 是多余的。这项调查研究了 BI 和 IWB 的独特方差对三个重要的体重相关因素的贡献：自尊、抑郁症状和身体羞耻。该研究包括通过 Qualtrics 研究小组招募的 403 名参与者。参与者的年龄要求为 18 岁以上且 BMI > 25。样本包含三个同等代表性、自我认定的种族/族裔群体：非西班牙裔黑人 (= 140)、西班牙裔 (= 133) 和非西班牙裔白人（= 130）。当BI在回归模型的第一步输入时，它在各种模型中占方差的14-40%；第二步中添加 IWB 贡献了 11-18% 的独特方差。相比之下，当第一步输入 IWB 时，它占各种模型中 25-56% 的方差，而添加 BI 则贡献 0% 到 2% 的独特方差。因此，即使 IWB 和 BI 的构建之间存在高度相关性，IWB 也能够在预测抑郁症状、自尊和身体羞耻方面贡献独特的方差，并且与 BI 的构建并不冗余。