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Bagherniya, Mohammad; Taghipour, Ali; Sharma, Manoj; Sahebkar, Amirhossein; Contento, Isobel R.; Keshavarz, Seyed Ali; Mostafavi Darani, Firoozeh; Safarian, Mohammad – Health Education Research, 2018
Social cognitive theory (SCT) is a well-known theory for designing nutrition education and physical activity programs for adolescents. This systematic review aimed to evaluate the efficacy of intervention studies based on SCT in reducing or preventing overweight and obesity in adolescents. An electronic literature search in PubMed-Medline, Web of…
Descriptors: Obesity, Intervention, Social Cognition, Body Composition
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Gray, Heewon Lee; Burgermaster, Marissa; Tipton, Elizabeth; Contento, Isobel R.; Koch, Pamela A.; Di Noia, Jennifer – Health Education & Behavior, 2016
Objective: Sample size and statistical power calculation should consider clustering effects when schools are the unit of randomization in intervention studies. The objective of the current study was to investigate how student outcomes are clustered within schools in an obesity prevention trial. Method: Baseline data from the Food, Health &…
Descriptors: Obesity, Energy, Elementary School Students, Body Composition
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Gray, Heewon Lee; Contento, Isobel R.; Koch, Pamela A. – Health Education Research, 2015
This study investigates the link between process evaluation components and the outcomes of a school-based nutrition curriculum intervention, "Choice, Control and Change". Ten New York City public middle schools were recruited and randomly assigned into intervention or control condition. The curriculum was to improve sixth to seventh…
Descriptors: Obesity, Prevention, Questionnaires, Interviews