194152 Predictors of behaviors related to obesity using the theory of planned behavior in middle school students

Monday, November 9, 2009

Melinda Ickes, MEd , Health Promotion and Education, University of Cincinnati, Cincinnati, OH
Manoj Sharma, PhD , Health Promotion & Education Program, University of Cincinnati & Walden University, Cincinnati, OH
Background: Obesity is one of the most widespread health threats facing children and adolescents. Of children and teenagers aged 619, approximately 16% (almost 9 million) are overweight. It is a serious health issue that has been considered by many health professionals to be an epidemic that has placed a burden on our society. The four well-recognized behaviors that offset the development of childhood obesity include daily physical activity that is moderately intense, limiting sedentary behaviors, increasing water consumption in relation to the amount of sweetened beverages consumed, and increasing fruit and vegetable consumption. Purpose: This study examined the extent to which constructs of the Theory of Planned Behavior predicted these four behaviors in middle school children. In addition, the development of a valid and reliable instrument which adequately reified the constructs of the TPB in relation to the aforementioned behaviors was also conducted. Methods: A cross-sectional design was utilized to obtain a convenience sample of approximately 700 middle school students. A 129-item valid and reliable instrument was administered in conjunction with the health and physical education teachers. In addition, height, weight and date of birth were recorded to calculate body mass index (BMI) for age. Confirmatory factor analysis was done to establish construct validity for each of the subscales used in the study. In establishing the predictors for each of the behaviors, stepwise multiple regression was used. Conclusions: Principal findings will be presented.

Learning Objectives:
At the end of the session, the participant will be able to: 1. Discuss the process of establishing reliability and validity of a scale based on the Theory of Planned Behavior for assessing behaviors linked to obesity in middle school children. 2. Compare the extent to which constructs of the Theory of Planned Behavior predict four behaviors linked to obesity in middle school children; namely daily physical activity, sedentary behaviors, fruit and vegetable intake, and water versus sweetened beverages consumption. 3. Design similar studies with other health-related behaviors in school settings.

Keywords: Adolescents, Obesity

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am currently a 3rd year doctoral student in the University of Cincinnati Health Education program. My dissertation research is on child and adolescent obesity prevention.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.