Body Dissatisfaction and Disordered Eating

大学是一个独特的脆弱时期，发展的身体不满（BD）和饮食失调的妇女。研究表明，这些公共卫生问题至少可以部分地用社会比较和客观化理论来解释，这是两种著名的社会心理学理论。人类与他人进行社会比较，以了解他们如何以及在哪里融入世界。对象化理论认为女性的身体被建构成一个被注视的对象，因此女性学会了从观察者的角度看待自己，并把自己当作被注视的对象。该提案将通过研究这两种理论如何适应Stice（1994）饮食失调的社会文化模型的详细版本，并通过使用经验采样/生态瞬时评估（EMA）方法来扩展以前的研究，该方法涉及在自然环境中每天多次评估参与者。具体而言，该提案将使用新的方法（即，EMA），测试社会比较和客观化作为可能解释饮食失调的社会文化模型中瘦理想内化和BD之间关系的因素，并利用严格的前瞻性分析-做这三件事将填补文献中的重要空白。的样品 200名女大学生将参加，其中将包括2个自我报告问卷会议（在一个学期的开始和结束）和为期2周的EMA组件（即，通过他们的个人电脑，参与者将完成一套简短的问题，每天3x学期中期）。评估的结构将包括：瘦的压力、瘦的理想内化、社会比较、身体监视（客观化的指标）、BD和饮食失调。关键假设：1）瞬时社会比较和身体监视的增加将与随后的BD和饮食失调的增加相关; 2）社会比较和身体监视的瞬时实例将介导瘦理想内化和BD之间的关系; 3）与不包含这些结构的模型相比，包含社会比较和身体监视的社会文化模型将提供更好的数据拟合。多水平和结构方程模型将被用来测试这些假设。结果可能会通知未来的预防计划，为大学女生确定相关的和可变的行为，影响BD/饮食失调。

College represents a unique vulnerability period for the development of body dissatisfaction (BD) and disordered eating among women. Research has suggested that these public health concerns may be at least partly explained by social comparison and objectification theories, two prominent social psychological theories. Humans engage in social comparisons with others in order to understand how and where they fit into the world. Objectification theory holds that the feminine body has been constructed as an object to be gazed upon; given this, females learn to view themselves from an observer's perspective and to treat themselves as objects to be looked at. This proposal will extend previous research by examining how these two theories fit into an elaborated version of Stice's (1994) socio-cultural model of disordered eating and by using an experience sampling/ecological momentary assessment (EMA) approach, which involves assessing participants multiple times per day in their natural environments. Specifically, this proposal will use novel methodology (i.e., EMA), test social comparison and objectification as factors that may explain the relation between thin ideal internalization and BD in the socio-cultural model of disordered eating, and utilize rigorous prospective analyses - doing these 3 things will fill important gaps in the literature. A sample of 200 college women will participate, which will include 2 self-report questionnaire sessions (at the start and end of an academic semester) and a 2-week EMA component (i.e., via their personal computers, participants will complete a short set of questions 3x/daily mid-semester). Constructs assessed will include: pressure for thinness, thin ideal internalization, social comparison, body surveillance (the indicator of objectification), BD, and disordered eating. Key hypotheses: 1) increases in momentary social comparison and body surveillance will be associated with subsequent increases in BD and disordered eating; 2) momentary instances of social comparison and body surveillance will mediate the relation between thin ideal internalization and BD; 3) a socio-cultural model incorporating social comparison and body surveillance will provide a better fit to the data than a model that does not incorporate these constructs. Multilevel and structural equation modeling will be utilized to test these hypotheses. Results may inform future prevention programs for college women by identifying relevant and mutable behaviors that impact BD/disordered eating.