Poster Topical Area: Nutrition Education and Behavioral Sciences
Poster Board Number: 226
Objectives: Older adults who lack positive dietary habits and food preparation skills may be at nutritional risk. It is important to understand older adults' motivation and perceived competence to cook. The purpose of this study was to examine if the Motivation to Prepare Healthy Foods Questionnaire (MPHFQ) was able to estimate intrinsic motivation (IM) and perceived competence (PC) to prepare healthy foods in an older adult population. The MPHFQ is based upon the constructs of the Self Determination Theory (SDT) and has been validated with a young adult population.
Methods: Free-living adults attending US Department of Health and Human Services, Administration on Aging, Congregate Nutrition Program events in Southeast Louisiana were recruited to participate. Subjects completed questionnaires that included five questions addressing IM and five questions addressing PC. Participants responded to the 10 statements using a 5-point Likert Scale ranging from 1 = "disagree a lot" to 5 = "agree a lot." Descriptive data were collected and survey responses were analyzed using exploratory factor analysis (EFA) with principal axis factoring and promax (oblique) rotation. Internal consistency was measured using Cronbach's alpha, α.
Results: A total of 107 participants from three Congregate Nutrition Program sites completed questionnaires. The participants' mean age was 73.4 ± 8.9 years. Most of the older adults were female (n=95; 89%). Racial/ethnic representation included 66 Caucasians (62%), 38 African Americans (36%), 1 Hispanic/Latino (1%), and 2 individuals who reported other/mixed race. Of the participants, 53 were widowed (50%), 23 were married (22%), 18 were single (17%), 12 were divorced (11%), and 1 did not indicate marital status. The KMO statistic of 0.904 indicated excellent sample size. The EFA returned two factors that explained 73.6% of the variance, and all statements were retained. Factor 1 statements described IM (64.3% of variance) and Factor 2 statements described PC (9.2% of variance). Cronbach's α for factor 1 = 0.915 and for factor 2 = 0.930.
Conclusions: The results from this study suggest that the MPHFQ has the potential to evaluate the SDT constructs of IM and PC in an older adult population.
Louisiana State University
Baton Rouge, Louisiana