Expectancy-Value Constructs and Expectancy Violation as Predictors of Exercise Adherence in Previously Sedentary Women

This prospective study examined effects of expectancy of exercise benefits, value of benefits, expectancy violation, and self-efficacy (SE) on exercise behavior and study dropout in sedentary women ( n = 86). SE predicted exercise for study completers but did not predict study dropout. After 6 and 1...

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Bibliographic Details
Published in:Health psychology 2001-09, Vol.20 (5), p.326-333
Main Authors: Sears, Sharon R, Stanton, Annette L
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Attrition
Body Weight
Dropouts
Exercise
Exercise - psychology
Expectancy-Value theory
Expectations
Female
Health psychology
Human
Human Females
Humans
Middle Aged
Motivation
Physical Fitness
Physical Fitness - psychology
Sedentary people
Self Efficacy
Set (Psychology)
Women
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Summary:This prospective study examined effects of expectancy of exercise benefits, value of benefits, expectancy violation, and self-efficacy (SE) on exercise behavior and study dropout in sedentary women ( n = 86). SE predicted exercise for study completers but did not predict study dropout. After 6 and 12 weeks, participants evidenced expectancy violations, particularly for fitness and weight. Initial value, expectancy, and Expectancy × Value did not predict exercise for study completers, but dropouts had higher initial positive expectancies than did completers. Expectancy violations produced in Weeks 1-6 did not predict exercise in Weeks 7-12 in study completers, but dropouts in Weeks 7-12 had higher expectancy violations for weight in Weeks 1-6 than did completers. Follow-up revealed that study dropouts stopped exercising. Identifying individuals with high initial expectancies and expectancy violations may improve health behavior intervention and research.
ISSN:0278-6133
1930-7810
DOI:10.1037/0278-6133.20.5.326