Adherence to a Low-fat Diet in African American Adolescents

描述（由申请人提供）：在响应计划公告04-147邀请提交的应用程序，解决癌症预防的发展研究，拟议的研究将检查模型的预测效用，以了解在经济上处于不利地位的黑人青少年坚持低脂饮食。将制定措施，以评估与选择低脂饮食和动机准备采取这些行为在经济上处于不利地位的11至14岁的非洲裔美国青少年的行为。将编写计划措施的初始项目池。项目库将由一个专家小组和目标人群的40名代表进行审查，并将根据这些参考人的反馈进行修订。该量表将被管理到300个经济上处于不利地位的黑人青少年的样本。测量结构，内部一致性的可靠性，和标准有效性的量表测量相关的选择低脂饮食和敏感性，特异性和预测值的算法分类受访者根据他们的动机准备采取这些行为将被检查。青年提供的数据将有助于了解对目标人群具有显著性的减脂行为，并检查这些人群的代表是否在采取所确定行为的准备程度上有所不同。分层线性模型将检验所提出的青少年脂肪摄入量模型的预测效用。如果所提出的模型预测的脂肪摄入量高于预测这种行为的模型文献中所反映的水平，那么研究结果将促进对非裔美国青少年低脂饮食的理解。研究结果将提供数据，以支持在这一人群中促进低脂饮食的干预措施。

DESCRIPTION (provided by applicant): In response to Program Announcement 04-147 inviting the submission of applications that address developmental research in cancer prevention, the proposed research will examine the predictive utility of a model for understanding adherence to a low-fat diet in economically disadvantaged Black adolescents. Measures for assessing behaviors related to selecting a low-fat diet and motivational readiness to adopt these behaviors among economically disadvantaged African American adolescents aged 11 through 14 years will be developed. Initial item pools for the planned measures will be written. Item pools will undergo review by an expert panel and sample of 40 representatives of the target population and will be revised based on feedback from these referents. The scales will be administered to a sample of 300 economically disadvantaged Black adolescents. The measurement structure, internal consistency reliability, and criterion validity of scales for measuring behaviors related to selecting a low-fat diet and the sensitivity, specificity, and predictive value of algorithms for classifying respondents according to their motivational readiness to adopt these behaviors will be examined. Data provided by youths will inform understanding of fat-reduction behaviors that have salience for the target population and examine whether representatives of this population vary in their readiness to adopt the behaviors identified. Hierarchical linear modeling will examine the predictive utility of the proposed model of adolescent fat intake. Should the proposed model predict fat intake at a level higher than that reflected in the literature on models for predicting this behavior, findings from the research will advance understanding of low-fat eating in African American adolescents. Findings will provide data on which to base interventions to promote low-fat eating in this population.