Social nudging: The effect of social feedback interventions on vaccine uptake.

Author(s)
Lars Korn, Cornelia Betsch, Robert Böhm, Nicolas W. Meier
Abstract

Objective: Most vaccines provide indirect community protection by preventing the transmission of the disease. Paradoxically, this effect can also motivate omission of vaccination because increasing vaccination rates reduce the risk of infection and, therefore, the individual benefit of vaccination. Consequently, vaccination becomes a social dilemma where individuals’ interests conflict with group interests. The current study investigated two social nudge interventions aiming to increasing individuals’ motivation to act in the group’s interest. Rewarding the attainment of the goal (disease elimination) is hypothesized to increase goal-directed behavior (vaccination). Further, it is assumed that comparisons with another group increase cooperative vaccination within one’s own group. Method: In a laboratory experiment, the interactive vaccination (I-Vax) game was used to model the direct and indirect effects of vaccinations. The game was played by 288 participants over 20 rounds. The experimental setup varied the feedback information after each round to implement a 2 (rewarding goal-attainment: present vs. absent) × 2 (intergroup comparison: present vs. absent) between-subjects design. Results: Analyses revealed the expected positive effect of rewarding goal-attainment, which was particularly strong at the beginning and weakened over the course of repeated decisions. The effect of intergroup comparisons was also positive but did not reach conventional criteria of statistical significance. Conclusions: The current experiment shows that communicating and rewarding “small wins” may increase individuals’ willingness to act in the group’s interest. Intergroup processes deserve further attention and investigation as potential strategies for improving vaccine communication and advocacy. (PsycInfo Database Record (c) 2020 APA, all rights reserved)

Organisation(s)
External organisation(s)
Universität Erfurt, Rheinisch-Westfälische Technische Hochschule Aachen
Journal
Health Psychology
Volume
37
Pages
1045-1054
No. of pages
10
ISSN
0278-6133
DOI
https://doi.org/10.1037/hea0000668
Publication date
11-2018
Peer reviewed
Yes
Austrian Fields of Science 2012
501021 Social psychology
Keywords
ASJC Scopus subject areas
Psychiatry and Mental health, Applied Psychology
Sustainable Development Goals
SDG 3 - Good Health and Well-being
Portal url
https://ucrisportal.univie.ac.at/en/publications/801272aa-f20d-416b-80b5-13fa02856b9e