The Role of Information Avoidance in Managing Uncertainty from Conflicting Recommendations about Electronic Cigarettes.

Insufficient scientific evidence about electronic cigarettes (e-cigarettes) has led to conflicting recommendations (CRs) by credible scientific organizations, creating a public health debate that could prove especially difficult to reconcile as current and former smokers make decisions about whether to use e-cigarettes. To investigate how CRs about e-cigarettes may affect intentions to engage in healthy behaviors, 717 former and current smokers were randomly exposed to one of five conditions (varying in the level of conflict in recommendations) in this between-subject experiment. Our results indicated a significant interaction between the message level of conflict and individuals' information avoidance, employed to maintain hope and deniability. These results suggest the effects of CRs stemming from scientific uncertainty vary with subgroups of people, pointing to several pressing theoretical and practical implications.

Leveraging immersive technology to expand access to opioid overdose reversal training in community settings: Results from a randomized controlled equivalence trial.

BACKGROUND: Immersive video (e.g. virtual reality) poses a promising and engaging alternative to standard in-person trainings and can potentially increase access to evidence-based opioid overdose prevention programs (OOPPs). Therefore, the objective of this equivalence study was to test whether the immersive video OOPP was equivalent to a standard in-person OOPP for changes in opioid overdose knowledge and attitudes. METHODS: A team of nurses and communication researchers developed a 9-minute immersive video OOPP. To test whether this immersive video OOPP (treatment) demonstrated equivalent gains in opioid overdose response knowledge and attitudes as in-person OOPPs (standard of care control), researchers deployed a two-day field experiment in Philadelphia, Pennsylvania, USA. In this equivalence trial, 9 libraries were randomly assigned to offer treatment or control OOPP to community members attending naloxone giveaway events. In this equivalence design, a difference between treatment and control groups pre- to post-training scores within -1.0 to 1.0 supports equivalence between the trainings. RESULTS: Results demonstrate participants (N = 94) exposed to the immersive video OOPP had equivalent improvements on posttest knowledge (ß=-0.18, p = .61) and more favorable attitudes about responding to an opioid overdose (ß=0.26, p = .02) than those exposed to the standard OOPP. However, these minor differences in knowledge and attitudes were within the equivalence interval indicating that the immersive video OOPP remained equivalently effective for community members. CONCLUSIONS: Community partnerships, like those between public health departments and libraries, can provide opportunities for deploying novel immersive video OOPP that, alongside standard offerings, can strengthen community response to the opioid crisis.

Support or competition? How online social networks increase physical activity: A randomized controlled trial.

To identify what features of online social networks can increase physical activity, we conducted a 4-arm randomized controlled trial in 2014 in Philadelphia, PA. Students (n = 790, mean age = 25.2) at an university were randomly assigned to one of four conditions composed of either supportive or competitive relationships and either with individual or team incentives for attending exercise classes. The social comparison condition placed participants into 6-person competitive networks with individual incentives. The social support condition placed participants into 6-person teams with team incentives. The combined condition with both supportive and competitive relationships placed participants into 6-person teams, where participants could compare their team's performance to 5 other teams' performances. The control condition only allowed participants to attend classes with individual incentives. Rewards were based on the total number of classes attended by an individual, or the average number of classes attended by the members of a team. The outcome was the number of classes that participants attended. Data were analyzed using multilevel models in 2014. The mean attendance numbers per week were 35.7, 38.5, 20.3, and 16.8 in the social comparison, the combined, the control, and the social support conditions. Attendance numbers were 90% higher in the social comparison and the combined conditions (mean = 1.9, SE = 0.2) in contrast to the two conditions without comparison (mean = 1.0, SE = 0.2) (p = 0.003). Social comparison was more effective for increasing physical activity than social support and its effects did not depend on individual or team incentives.