2025/01/01 by Lena Wimmer, Katharina Keck, Jörg Wittwer · 1 voice
Social Sciences · Neuroscience · Psychology · #Social and Intergroup Psychology #Psychology of Moral and Emotional Judgment #Behavioral and Psychological Studies
paper · pdf · doi:10.1525/collabra.150250
openalex publication_date 2025/01/01 · openalex created_date 2025/12/09 · openalex updated_date 2026/06/11
The present preregistered experiment tests the effectiveness of two intervention measures for reducing myside bias. Myside bias in argument evaluation was assessed 1) immediately after the intervention, that is, completing a scientific reasoning test as a processing-based (n = 126) or responding to an identity-threat prime as a conviction-based (n = 133) intervention in two experimental groups, 2) immediately before the intervention in a control group (n = 131), and 3) again 14 days later in all groups. In line with existing evidence, a myside bias was observed in so far as belief-consistent arguments were evaluated as more persuasive than belief-inconsistent arguments. Furthermore, myside bias did not change over time and was not found to be reduced by either intervention measure. This continued to hold when treatment fidelity, demographic variables, and the strength of participants’ prior belief regarding the topic of the arguments were controlled for.