Body Dissatisfaction and Disordered Eating

大学是女性对身体不满（BD）和饮食失调发展的一个独特的脆弱时期。研究表明，这些公共健康问题至少可以部分地用社会比较理论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是为了了解他们如何以及在哪里融入这个世界。客观化理论认为，女性的身体被建构为一个被凝视的对象；鉴于此，女性学会了从观察者的角度看待自己，把自己当作被观察的对象。该提案将通过检验这两种理论如何适用于斯蒂斯（1994）饮食失调的社会文化模型的详细版本，并通过使用经验抽样/生态瞬间评估（EMA）方法来扩展先前的研究，该方法涉及每天在自然环境中对参与者进行多次评估。具体而言，本提案将使用新颖的方法（即EMA），测试社会比较和客观化作为可能解释饮食失调社会文化模型中瘦理想内化与BD之间关系的因素，并利用严格的前瞻性分析-做这3件事将填补文献中的重要空白。的例子

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.