Colleges
Rakoen Maertens
BSc MSc PhD DPhil FCPS CPsychol
Juliana Cuyler Matthews Junior Research Fellow
Social Psychology | Applied Behavioural Science
Research
My work centres around three topics:
Social Influence & Misinformation: how can we use the insights of social psychology to understand and tackle the influence of misleading information.
Psychometrics & Impact Evaluation: how can we effectively measure psychological constructs (incl. AI-based methods), and how can we improve the methodological frameworks to talk about impactful psychological interventions.
Applied Behavioural Science & Nudging: how can we transform behavioural science into practical solutions, policy, and product design.
Before starting my Junior Research Fellowship at the University of Oxford (New College), I finished my PhD on ”The Long-Term Effectiveness of Inoculation Against Misinformation" at the University of Cambridge, for which I won the CSAR Award for Applied Research. Back in Belgium I finished my BSc and MSc (summa cum laude) in Experimental Psychology at Ghent University, where I received the Best Master Dissertation of Belgium award by the Belgian Association for Psychological Sciences and Royal Academies for Science and the Arts of Belgium.
Partnerships
I have a particular interest in science diplomacy and translating scientific research into impactful interventions. I represented three NGOs at the United Nations and am currently co-leading the Society for Personality and Social Psychology (SPSP) United Nations Committee. Much of my work is done in collaboration with the private, public, and third sectors, including work with the UK Cabinet Office and the European Commission on misinformation susceptibility and vaccine uptake and work with Google and WhatsApp on interventions to train people to recognise misinformation on their platforms.
Teaching
This year I am lecturing and tutoring for the Social Psychology course at the Department, with a focus on the following topics:
Personality, Social Influence, and Norms
Misinformation & Influence and Persuasion in the Digital Age
Nudging & Applied Behavioural Insights
Key publications
Let the algorithm speak: How to use neural networks for automatic item generation in psychological scale development.
Journal article
Götz FM. et al, (2024), Psychol Methods, 29, 494 - 518
The Misinformation Susceptibility Test (MIST): A psychometrically validated measure of news veracity discernment.
Journal article
Maertens R. et al, (2024), Behav Res Methods, 56, 1863 - 1899
Susceptibility to misinformation is consistent across question framings and response modes and better explained by myside bias and partisanship than analytical thinking
Journal article
Roozenbeek J. et al, (2022), Judgment and Decision Making, 17, 547 - 573
Long-term effectiveness of inoculation against misinformation: Three longitudinal experiments.
Journal article
Maertens R. et al, (2021), J Exp Psychol Appl, 27, 1 - 16
Combatting climate change misinformation: Evidence for longevity of inoculation and consensus messaging effects
Journal article
Maertens R. et al, (2020), Journal of Environmental Psychology, 70
Recent publications
The Misinformation Susceptibility Test (MIST): A psychometrically validated measure of news veracity discernment
Preprint
Maertens R. et al, (2026)
The gateway (mis)belief model: How misinformation impacts perceptions of scientific consensus and attitudes towards climate change.
Journal article
Logemann HT. et al, (2025), Br J Psychol
Psychological booster shots targeting memory increase long-term resistance against misinformation.
Journal article
Maertens R. et al, (2025), Nat Commun, 16
Psychological Booster Shots Targeting Memory Increase Long-Term Resistance Against Misinformation
Preprint
Maertens R. et al, (2025)
Psychological Booster Shots Targeting Memory Increase Long-Term Resistance Against Misinformation
Preprint
Maertens R. et al, (2025)
Misinformation interventions decay rapidly without an immediate posttest
Journal article
Capewell G. et al, (2024), Journal of Applied Social Psychology, 54, 441 - 454
Toolbox of individual-level interventions against online misinformation.
Journal article
Kozyreva A. et al, (2024), Nat Hum Behav, 8, 1044 - 1052
Let the algorithm speak: How to use neural networks for automatic item generation in psychological scale development.
Journal article
Götz FM. et al, (2024), Psychol Methods, 29, 494 - 518
The Misinformation Susceptibility Test (MIST): A psychometrically validated measure of news veracity discernment.
Journal article
Maertens R. et al, (2024), Behav Res Methods, 56, 1863 - 1899
The Reversed Gateway Belief Model: How Misinformation Impacts Perceptions of the Scientific Consensus on and Attitudes towards Climate Change
Preprint
Logemann HT. et al, (2023)
Feedback Exercises Boost Discernment of Misinformation for Gamified Inoculation Interventions
Preprint
Leder J. et al, (2023)
Misinformation interventions decay rapidly without an immediate post-test
Preprint
Capewell G. et al, (2023)
bility to detect fake news predicts sub-national variation in COVID-19 vaccine uptake across the UK
Preprint
Loomba S. et al, (2023)
Psychological Booster Shots Targeting Memory Increase Long-Term Resistance Against Misinformation
Preprint
Maertens R. et al, (2023)
The roots of ecological dominance orientation: Assessing individual preferences for an anthropocentric and hierarchically organized world
Journal article
Uenal F. et al, (2022), Journal of Environmental Psychology, 81
Susceptibility to misinformation is consistent across question framings and response modes and better explained by myside bias and partisanship than analytical thinking
Journal article
Roozenbeek J. et al, (2022), Judgment and Decision Making, 17, 547 - 573
The Effects of Consensus Messages and the Importance of a Pre-Test: A Comment on Chinn and Hart (2021)
Preprint
Linden SVD. et al, (2021)
Do Climate Change Consensus Messages Cause Reactance? A Comment on Chinn and Hart (2021)
Preprint
Linden SVD. et al, (2021)
The Misinformation Susceptibility Test (MIST): A psychometrically validated measure of news veracity discernment
Preprint
Maertens R. et al, (2021)
Let the Algorithm Speak: How to Use Neural Networks for Automatic Item Generation in Psychological Scale Development
Preprint
Götz FM. et al, (2021)
How Can Psychological Science Help Counter the Spread of Fake News?
Journal article
van der Linden S. et al, (2021), Span J Psychol, 24
Disentangling Item and Testing Effects in Inoculation Research on Online Misinformation: Solomon Revisited.
Journal article
Roozenbeek J. et al, (2021), Educ Psychol Meas, 81, 340 - 362
Long-term effectiveness of inoculation against misinformation: Three longitudinal experiments.
Journal article
Maertens R. et al, (2021), J Exp Psychol Appl, 27, 1 - 16
Combatting climate change misinformation: Evidence for longevity of inoculation and consensus messaging effects
Journal article
Maertens R. et al, (2020), Journal of Environmental Psychology, 70