Centro de Estudios de la Conducta Alimentaria (CECA), Escuela de Psicología, Universidad Adolfo Ibáñez, Av. Diagonal Las Torres 2640, Santiago 7911328, Chile.
Facultad de Psicología, Universidad Complutense de Madrid, 28223 Madrid, Spain.
Int J Environ Res Public Health. 2022 Dec 29;20(1):628. doi: 10.3390/ijerph20010628.
The aim of this study is to analyze the factorial structure of the Multidimensional Body-Self Relations Questionnaire-Appearance Scales (MBSRQ-AS) to determine the adjustment of the study structure proposed in the Spanish short version in a young, non-clinical Chilean population and to evaluate the possible influence of sex, age, and BMI on body image measurement. The sample consisted of 614 Chilean youth (259 male and 355 female) between 15 and 28 years old (M = 18.81; SE = 2.46), from the Metropolitan Region, and four regions of the coast and south-central zone of the country. The average Body Mass Index (BMI) was 22.5 kg/m (SD = 3.16). The model fit was evaluated by confirmatory factor analysis (WLSMV) using the following: a model with a single general factor, a model with the five factors of the original version, a five-factor ESEM model, and a MIMIC model analyzed including sex, age, and BMI. The results show that the MIMIC sex, age, and BMI model presents an acceptable fit, observing that four factors, Appearance Orientation (AO), Body Areas Satisfaction (BAS), Overweight Preoccupation (OP), and Self-Classification Weight (SCW), are affected significantly for the sex variable, one for age, Appearance Evaluation (AE), and four for BMI (AE, BAS, OP, and SCW). In conclusion, MBSRQ-AS replicates the five-dimensional structure in a non-clinical sample of young Chileans; however, their scores are not invariant as they depend on sex, age, and BMI.
本研究旨在分析多维身体自我关系问卷-外观量表（MBSRQ-AS）的因子结构，以确定在年轻的非临床智利人群中对西班牙短版研究结构的调整，并评估性别、年龄和 BMI 对身体形象测量的可能影响。该样本由来自智利首都地区和该国沿海及中南部四个地区的 614 名 15 至 28 岁的智利青年（男性 259 名，女性 355 名）组成（M = 18.81；SE = 2.46）。平均体重指数（BMI）为 22.5 kg/m（SD = 3.16）。通过验证性因素分析（WLSMV）评估模型拟合度，使用以下模型：一个具有单一总体因素的模型、一个具有原始版本五个因素的模型、一个五因素 ESEM 模型和一个包含性别、年龄和 BMI 的 MIMIC 模型。结果表明，MIMIC 性别、年龄和 BMI 模型具有可接受的拟合度，观察到四个因素，即外观取向（AO）、身体区域满意度（BAS）、超重关注（OP）和自我分类体重（SCW），受性别变量显著影响，一个因素，即外观评价（AE），以及四个因素，即 BAS、OP 和 SCW，受 BMI 影响。总之，MBSRQ-AS 在非临床的年轻智利人群中复制了五维度结构；然而，它们的分数不是不变的，因为它们取决于性别、年龄和 BMI。
