%0 Journal Article %J Health psychology : official journal of the Division of Health Psychology, American Psychological Association %D 2016 %T The Impact of Changing Attitudes, Norms, and Self-Efficacy on Health-Related Intentions and Behavior: A Meta-Analysis. %A Sheeran, Paschal %A Maki, Alexander %A Montanaro, Erika %A Avishai-Yitshak, Aya %A Bryan, Angela %A Klein, William M P %A Miles, Eleanor %A Rothman, Alexander J %X Several health behavior theories converge on the hypothesis that attitudes, norms, and self-efficacy are important determinants of intentions and behavior. However, 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. %8 2016 Jun 9