Abstract
Accurate assessment of physical activity is important to studies interested in the relationship between physical activity and other variables. Questionnaires are the only feasible means for large-scale sampling but such self-report measures require validation due to their inherent subjectivity. The Adventist Health Study-2 (AHS-2) survey includes exercise items that were validated in the present investigation. A calibration study examined self-reports of exercise with two phone calls to 1,000 participants in which an interview-assisted 7-day physical activity recall was completed by a random sample of AHS-2 participants. Inter-index correlations both within the survey and between the survey and the 7-day physical activity recall were examined to offer convergent and discriminant validity. Finally, clinical data used to diagnose metabolic syndrome provided a third means of validation by demonstrating an inverse association with physical activity. Weak to strong correlations between the AHS-2 items and the 7-day recall, test-retest reliability, factor analysis, and metabolic syndrome data indicated that the questionnaire possessed an adequate level of validity.
LLU Discipline
Psychology
Department
Psychology
School
Graduate Studies
First Advisor
Kelly R. Morton
Second Advisor
Gary E. Fraser
Third Advisor
Jason E. Owen
Degree Name
Master of Arts (MA)
Degree Level
M.A.
Year Degree Awarded
2010
Date (Title Page)
9-2010
Language
English
Library of Congress/MESH Subject Headings
Physical Fitness; Exercise Therapy -- instrumentation; Directly Observed Therapy -- instrumentation; Metabolic Syndrome X -- physiology; Health Behavior -- psychology; Mental Recall; Patient Compliance; Task Performance and Analysis.
Type
Thesis
Page Count
xii; 135
Digital Format
Digital Publisher
Loma Linda University Libraries
Copyright
Author
Usage Rights
This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.
Recommended Citation
Silber, Benjamin J., "Convergent Validity of Self Reported Physical Activity with a Seven Day Recall" (2010). Loma Linda University Electronic Theses, Dissertations & Projects. 775.
https://scholarsrepository.llu.edu/etd/775
Collection
Loma Linda University Electronic Theses and Dissertations
Collection Website
http://scholarsrepository.llu.edu/etd/
Repository
Loma Linda University. Del E. Webb Memorial Library. University Archives