Fostering compliance with physical distancing by interactive feedback in the context of the COVID-19 pandemic: evidence from the CorDis study. (Preprint)
BACKGROUND To slow down the spread of COVID-19, the observance of basic hygiene measures, and physical distancing is recommended. Initial findings suggest that physical distancing in particular can prevent the spread of COVID-19. Attitudes towards these measures are influenced by many factors and are likely to play an important role in their compliance. Information on the effectiveness and significance of the measures could have an influence on this, but there is empirical evidence that this influence depends on the way of presentation. OBJECTIVE To investigate how information to prevent the spread of infectious diseases should be presented in order to increase willingness to comply with preventive measures. METHODS In a preregistered online experiment, 817 subjects were presented with either interactively controllable graphics on the spread of COVID-19 and information that enable them to recognize how much the spread of COVID-19 is reduced by physical distancing (experimental group) or text-based information about quantitative evidence (control group). It was hypothesized that participants receiving interactive information on the prevention of COVID-19 infections show a significantly higher willingness to comply with future containment measures than participants reading the text-based information. Explorative analyses were conducted to examine whether other factors influence compliance. RESULTS As predicted, we found a small effect (d = 0.22) for the tested intervention. In the exploratory analysis, the only additional significant predictor of change in compliance was health-related anxiety, but the effect was trivial. CONCLUSIONS When presented interactively, information on how the own behavior can help prevent infectious diseases can lead to slightly stronger changes in attitude towards behavioral prevention measures than just text-based information. Given the scalability of this simple internet-based intervention, it could play a role in fostering compliance during a pandemic within universal prevention strategies. Future work on the predictive validity of self-reported compliance and the real-world effects on the intervention is needed. CLINICALTRIAL AsPredicted #37823 - https://aspredicted.org/nz4gd.pdf