Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

How people update their beliefs about climate change : An experimental investigation of the optimistic update bias and how to reduce it

Kube, Tobias ; Wullenkord, Marlis LU orcid ; Rozenkrantz, Liron ; Kramer, Peter ; Lieb, Sophia and Menzel, Claudia (2023) In Political Psychology
Abstract
People usually update their beliefs selectively in response to good news and disregard bad news. Here, we investigated in two preregistered experiments (N = 278 and N = 306) (1) whether such valence-dependent belief updating also underlies information processing in the context of climate change and (2) whether it can be altered by interventions informing about different aspects of climate change. To this end, we adapted a well-established belief update task to the context of climate change. In multiple trials, participants were asked about their beliefs about adverse consequences of climate change; subsequently, they were asked to update their beliefs in light of new information. Both studies provided evidence against the hypothesis that... (More)
People usually update their beliefs selectively in response to good news and disregard bad news. Here, we investigated in two preregistered experiments (N = 278 and N = 306) (1) whether such valence-dependent belief updating also underlies information processing in the context of climate change and (2) whether it can be altered by interventions informing about different aspects of climate change. To this end, we adapted a well-established belief update task to the context of climate change. In multiple trials, participants were asked about their beliefs about adverse consequences of climate change; subsequently, they were asked to update their beliefs in light of new information. Both studies provided evidence against the hypothesis that people integrate good news about climate change more than bad news. After half of the trials, participants were randomized to one of four video-based interventions, each of which aimed at promoting a more accurate risk perception and increasing pro-environmental intentions. After the interventions, participants showed a more accurate risk perception, and women rather than men increased their intentions for pro-environmental behavior. The results provide implications for climate change communication, as they show that when facing the consequences of climate change, people adjust their risk perception accurately and increase their pro-environmental intentions. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
climate change, optimism bias, belief updating, pro-environmental behavior, risk perception
in
Political Psychology
publisher
Wiley-Blackwell
external identifiers
  • scopus:85168380300
ISSN
0162-895X
DOI
10.1111/pops.12920
language
English
LU publication?
yes
id
1fe11af8-334a-4522-aa6b-535de873bd58
date added to LUP
2023-08-19 17:52:39
date last changed
2023-09-22 04:00:29
@article{1fe11af8-334a-4522-aa6b-535de873bd58,
  abstract     = {{People usually update their beliefs selectively in response to good news and disregard bad news. Here, we investigated in two preregistered experiments (N = 278 and N = 306) (1) whether such valence-dependent belief updating also underlies information processing in the context of climate change and (2) whether it can be altered by interventions informing about different aspects of climate change. To this end, we adapted a well-established belief update task to the context of climate change. In multiple trials, participants were asked about their beliefs about adverse consequences of climate change; subsequently, they were asked to update their beliefs in light of new information. Both studies provided evidence against the hypothesis that people integrate good news about climate change more than bad news. After half of the trials, participants were randomized to one of four video-based interventions, each of which aimed at promoting a more accurate risk perception and increasing pro-environmental intentions. After the interventions, participants showed a more accurate risk perception, and women rather than men increased their intentions for pro-environmental behavior. The results provide implications for climate change communication, as they show that when facing the consequences of climate change, people adjust their risk perception accurately and increase their pro-environmental intentions.}},
  author       = {{Kube, Tobias and Wullenkord, Marlis and Rozenkrantz, Liron and Kramer, Peter and Lieb, Sophia and Menzel, Claudia}},
  issn         = {{0162-895X}},
  keywords     = {{climate change; optimism bias; belief updating; pro-environmental behavior; risk perception}},
  language     = {{eng}},
  month        = {{08}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Political Psychology}},
  title        = {{How people update their beliefs about climate change : An experimental investigation of the optimistic update bias and how to reduce it}},
  url          = {{http://dx.doi.org/10.1111/pops.12920}},
  doi          = {{10.1111/pops.12920}},
  year         = {{2023}},
}