ETDs

This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.

In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.

Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.

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Pilot test of the Validity of a Novel Animal-based Food Frequency Questionnaire

Description
A large amount of research associates the lack of fruit and vegetable consumption and the intake of animal-based foods with poor health outcomes. Making shifts towards a plant-focused diet could benefit the health of individuals. Individuals who show the highest long-term adherence to the avoidance of animal-based foods are those…

A large amount of research associates the lack of fruit and vegetable consumption and the intake of animal-based foods with poor health outcomes. Making shifts towards a plant-focused diet could benefit the health of individuals. Individuals who show the highest long-term adherence to the avoidance of animal-based foods are those who value animal welfare. PURPOSE: The primary purpose of this study is to explore the validity of a novel animal food frequency questionnaire (AFFQ) in relation to dietary animal food intake using 3-day dietary food logs and measuring potential renal acid load (PRAL). PRAL is the amount of acid that is produced by the body after digesting food. Fruits and vegetables produce a lower acid load, which is reflective of positive health outcomes. A secondary aim of this study is to explore the relation between AFFQ scores and measures of empathy. METHODS: Participants complete a 10-minute survey including the AFFQ and the BES-A. The Basic Scale of Empathy for adults will be viewed based on the 2 factor and 3 factor analysis assessing: Affective empathy, Cognitive empathy, Emotional contagion, and Emotional Disconnection. The AFFQ will be scored and correlated with the 3-day food log and PRAL to explore validity of the new AFFQ scale. Secondarily, the AFFQ will be scored and correlated with the BES-A to explore an association. RESULTS: The null hypotheses H01 and H02 were rejected. H01 showed that AFFQ correlates significantly with percentage of dietary protein coming from animal- based products (r=.676, p=.016). H02 showed AFFQ has a significant correlation to PRAL (r=.831, p<.001). PRAL and the percentage of protein in the diet coming from animal-based products have a significant correlation (r=.725, p=.008). The null hypothesis H03 was accepted with AFFQ and BES-A 2 factor and 3 factor’s correlations showing (r= -.412, p=.183) and (r= -.307, p=.332). CONCLUSION: The AFFQ was able to reflect differences in frequency of animal-based food intake among the convenience sample. The AFFQ and individuals’ food choices were not related to their empathy levels.
ContributorsAlpine, Evajean May (Author) / Wharton, Christopher (Thesis advisor) / Lehmann, Jessica (Committee member) / Johnston, Carol (Committee member) / Arizona State University (Publisher)
Created2021
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Reliability of a Household Food Waste Self-Assessment Tool

Description
Food waste is gaining considerable attention from researchers in terms of its sources, its causes, and its potential effects on the environment, economy, and population health. To date, few instruments exist that allow researchers to measure food waste at the household level in reliable ways. This study aimed to assess…

Food waste is gaining considerable attention from researchers in terms of its sources, its causes, and its potential effects on the environment, economy, and population health. To date, few instruments exist that allow researchers to measure food waste at the household level in reliable ways. This study aimed to assess the reliability of a newly developed self-assessment tool to measure household food waste, among participants living in Mexico. The survey tool consisted of 11 items which ask participants (N = 22) to estimate the amount of food per category that generally gets thrown away instead of eaten in the average week. Two tests of reliability were conducted, including Cronbach's Alpha for test-retest reliability, and Intra-class Correlation for internal reliability. Results varied across food categories evaluated by individual items. Items related to fresh fruit and bread products did not show reliability when testing for internal reliability or test-retest reliability. Fresh vegetables, meat and poultry products, meat alternative products, fish and seafood products, leftovers, and shelf stable foods were shown to be reliable when testing Cronbach's alpha and ICC. However, dairy products, eggs and frozen foods were inconclusive when testing for reliability. The study suggests future testing with larger sample sizes should be conducted to demonstrate reliability of the food waste self-assessment tool.
ContributorsLeone, Bryanna (Author) / Wharton, Christopher (Thesis advisor) / Shepard, Christina (Committee member) / Johnston, Carol (Committee member) / Arizona State University (Publisher)
Created2022