Jane Ebert

Abstract Background Physical activity interventions using habit development may help people increase and then maintain physical activity increases over time. Enacting behavior in consistent contexts is a central component of habit development, yet its causal role in habit development in health behaviors has not been confirmed. Purpose This study tests the causal role of consistent context in habit development in health behavior, using a randomized control trial of a planning intervention to develop a walking habit in 127 insufficiently active, working, midlife adults in a real-world setting. Methods We compare participants who plan walking in consistent contexts with controls who plan walking in varied contexts and with controls not required to plan on a change in average daily steps (measured using an accelerometer) and inhabit automaticity during a 4-week intervention and at a 4-week follow-up. Results As expected, consistent and varied context planners increased walking during the intervention, but only consistent context planners developed (and maintained) habit automaticity. Counter to expectations, consistent context planners did not show walking maintenance. However, across conditions, participants who developed more habit automaticity during the intervention also maintained walking more (decreased less). Having a routine daily schedule moderated some effects. Notably, no-plan controls with greater routine developed more habit automaticity, mediated by walking in more consistent contexts. Conclusions This study confirms the causal role of consistent contexts in developing a walking habit, in a real-world setting, with an important but challenging population for physical activity interventions and identifies a facilitating condition common for many: a routine schedule.

We consider the impact of health promotion efforts on the timing of health behavior in a real-world setting alongside effects of temporally predictable and other environmental factors. By better understanding the systemic context of promotions, we sought to explain, and suggest timing strategies to enhance, campaign effectiveness in ways often overlooked by health promotion staff. We assessed call volume in response to promotions from May 2004 to December 2008 by a state program in the United States that provides free mammograms to underinsured women. Weekly data were analyzed using OLS regression, using predictor variables representing program promotions, breast cancer awareness, season, and other factors. Call volume was greater following television or direct mail promotions, during periods with higher unemployment rates, during school-term time, and in favorable climate conditions. These results highlight predictable temporal variations in the response to these promotions, suggesting important implications for the timing of health promotion efforts.

Temporal discount rates are often poor predictors of behaviors that we expect will be motivated by the future. The current research suggests this may be because conventional discounting measures are poor measures of the motivational value of future rewards. In six studies, I develop motivation-based measures of the present value (PV) of future rewards and compare the PVs obtained with those obtained using conventional money-based discounting measures. Conventional money-based PVs consistently overestimate motivation-based PVs and are discriminable from them. I explore explanations for this mismatch, including timing of effort exertion (Study 2) and loss aversion (Study 3), both features of the motivation-based measures. In Study 5, I use self-reports of valuation strategies and a time pressure manipulation to demonstrate that participants use different valuation strategies in the conventional money-based and the motivation-based measures that, in part, determine the difference in PVs obtained and the relatively low correspondence between them.

Older adults constitute a rapidly growing demographic segment, but stereotypes persist about their consumer behavior. The goal of this review was to develop a more considered understanding of age-associated changes in consumer decision making. Our theoretical model suggests that age-associated changes in cognition, affect, and goals interact to make older consumers’ decision-making processes, brand choices, and habits different from those of younger adults. We first review literature on stereotypes about the elderly and then turn to an analysis of age differences in the inputs (cognition, affect, and goals) and the outcomes (decisions, brand choices, and habits) of decision processes.

People prefer to make changeable decisions rather than unchangeable decisions because they do not realize that they may be more satisfied with the latter. Photography students believed that having the opportunity to change their minds about which prints to keep would not influence their liking of the prints. However, those who had the opportunity to change their minds liked their prints less than those who did not (Study 1). Although the opportunity to change their minds impaired the postdecisional processes that normally promote satisfaction (Study 2a), most participants wanted to have that opportunity (Study 2b). The results demonstrate that errors in affective forecasting can lead people to behave in ways that do not optimize their happiness and well-being.