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Predicting Behavioral Intentions and Physical Exercise: A Test of the Health Action Process Approach at the Intrapersonal Level


Scholz, Urte; Keller, R; Perren, S (2009). Predicting Behavioral Intentions and Physical Exercise: A Test of the Health Action Process Approach at the Intrapersonal Level. Health Psychology, 28(6):702-708.

Abstract

Theories of health behavior are usually tested on the between-person level. Associations
between variables on the between- and the within-person level, however, can differ substantially. Thus,
in order to better understand intrapersonal processes in the domain of health behavior, studies applying
within-person analyses are needed. This study tested the Health Action Process Approach (HAPA) on the
within- and between-person level in the context of physical exercise. Design: Participants were 265
first-year students who completed nine online questionnaires every second week. Data were analyzed by
focusing on intrapersonal associations applying multilevel modeling. Main Outcome Measures: Intentions
for physical exercise and self-reported physical exercise served as main outcome measures. Results:
Analyses mainly confirm associations specified by the HAPA at the intrapersonal level: outcome
expectancies and self-efficacy, but not risk awareness, were positively associated with intentions for
physical exercise. Physical exercise in turn was positively associated with intentions, self-efficacy, action
control, but not with action planning. Conclusion: The HAPA could be confirmed on the within-person
level. Future studies should focus on testing other theories of health behavior at the within-person level.

Theories of health behavior are usually tested on the between-person level. Associations
between variables on the between- and the within-person level, however, can differ substantially. Thus,
in order to better understand intrapersonal processes in the domain of health behavior, studies applying
within-person analyses are needed. This study tested the Health Action Process Approach (HAPA) on the
within- and between-person level in the context of physical exercise. Design: Participants were 265
first-year students who completed nine online questionnaires every second week. Data were analyzed by
focusing on intrapersonal associations applying multilevel modeling. Main Outcome Measures: Intentions
for physical exercise and self-reported physical exercise served as main outcome measures. Results:
Analyses mainly confirm associations specified by the HAPA at the intrapersonal level: outcome
expectancies and self-efficacy, but not risk awareness, were positively associated with intentions for
physical exercise. Physical exercise in turn was positively associated with intentions, self-efficacy, action
control, but not with action planning. Conclusion: The HAPA could be confirmed on the within-person
level. Future studies should focus on testing other theories of health behavior at the within-person level.

Citations

23 citations in Web of Science®
26 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Jacobs Center for Productive Youth Development
06 Faculty of Arts > Institute of Psychology
Dewey Decimal Classification:150 Psychology
370 Education
Language:English
Date:2009
Deposited On:03 Feb 2010 14:29
Last Modified:05 Apr 2016 13:44
Publisher:American Psychological Association
ISSN:0278-6133
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:10.1037/a0016088
Permanent URL: http://doi.org/10.5167/uzh-27054

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