(2016) The impact of changing attitudes, norms, and self-efficacy on health-related intentions and behavior: a meta-analysis. Health Psychology, 35 (11). pp. 1178-1188 This version is available from Sussex Research Online: http://sro.sussex.ac.uk/58976/ This document is made available in accordance with publisher policies and may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the URL above for details on accessing the published version. Copyright and reuse:Sussex Research Online is a digital repository of the research output of the University.Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available.Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. CHANGING HEALTH BEHAVIORS 1The Impact of Changing Attitudes, Norms, and Self-Efficacy on Health-Related Intentions and Behavior: A Meta-Analysis CHANGING HEALTH BEHAVIORS 2 AbstractObjective: Several health behavior theories converge on the hypothesis that attitudes, norms, and self-efficacy are important determinants of intentions and behavior. Yet inferences regarding the relation between these cognitions and intention or behavior rest largely on correlational data that preclude causal inferences. To determine whether changing attitudes, norms, or self-efficacy leads to changes in intentions and behavior, investigators need to randomly assign participants to a treatment that significantly increases the respective cognition relative to a control condition, and test for differences in subsequent intentions or behavior. The present review analyzed findings from 204 experimental tests that met these criteria. Methods: Studies were located using computerized searches and informal sources and meta-analyzed using STATA Version 11.Results: Experimentally induced changes in attitudes, norms, and self-efficacy all led to mediumsized changes in intention (d+ = .48, .49, and .51, respectively), and engendered small to medium-sized changes in behavior (attitudes-d+ = .38; norms-d+ = .36; self-efficacy-d+ = .47).These effect sizes generally were not qualified by the moderator variables examined (e.g., study quality, theoretical basis of the intervention, methodological characteristics, features of the targeted behavior), although effects were larger for interventions designed to increase (vs. decrease) behavioral performance. Conclusion: The present review lends novel, experimental support...

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Because volunteerism is a planned activity that unfolds over time, people who more frequently focus on the future might also be more likely to initiate volunteerism and sustain it over time. Using longitudinal (Study 1) and experimental (Study 2) paradigms, we investigated whether time perspective, and in particular a person's orientation toward the future, is related to volunteers' beliefs and behavior. In Study 1, a person's dispositional level of future time perspective was closely linked to volunteer beliefs and behavior. In Study 2, people who wrote about the future reported higher intentions to volunteer, and this was particularly true for infrequent volunteers and those with lower levels of dispositional future time perspective. Across two studies, we found evidence that future time perspective, whether a chronic disposition or a pattern of thought elicited by someone else, is linked to volunteer beliefs and behavior.

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To better understand the consistency of people's proenvironmental intentions and behaviors, we set out to examine two sets of research questions. First, do people perform (1) different types of proenvironmental behaviors consistently, and (2) the same proenvironmental behavior consistently across settings? Second, are there consistent predictors of proenvironmental behavioral intentions across behavior and setting type? Participants reported four recycling and conservation behaviors across three settings, revealing significant variability in rates of behaviors across settings. Prior behavior, attitudes toward the behavior, and importance of the behaviour consistently predicted proenvironmental intentions. However, perceived behavioral control tended to predict intentions to perform proenvironmental behavior outside the home. Future research aimed at understanding and influencing different proenvironmental behaviors should carefully consider how settings affect intentions and behavior.