Olivier Klein

ORCID: 0000-0003-2737-8049
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About
Contact & Profiles
Research Areas
  • Social and Intergroup Psychology
  • Misinformation and Its Impacts
  • Cultural Differences and Values
  • Psychology of Moral and Emotional Judgment
  • Social Media and Politics
  • Behavioral Health and Interventions
  • Vaccine Coverage and Hesitancy
  • Eating Disorders and Behaviors
  • COVID-19 and Mental Health
  • Social Representations and Identity
  • Psychological Well-being and Life Satisfaction
  • Psychoanalysis and Psychopathology Research
  • Early Childhood Education and Development
  • Hate Speech and Cyberbullying Detection
  • Evolutionary Psychology and Human Behavior
  • Doctoral Education Challenges and Solutions
  • Education, sociology, and vocational training
  • Linguistics and Discourse Analysis
  • Organic Food and Agriculture
  • Gender Roles and Identity Studies
  • Migration, Refugees, and Integration
  • Perfectionism, Procrastination, Anxiety Studies
  • Decision-Making and Behavioral Economics
  • Deception detection and forensic psychology
  • Media Influence and Health

Université Libre de Bruxelles
2016-2025

Universität Greifswald
2018-2023

Mannheim Centre for European Social Research
2012-2022

University of Mannheim
2012-2021

Ludwig-Maximilians-Universität München
2021

Laboratoire Aménagement Économie Transports
2020

Luxembourg Institute of Socio-Economic Research
2018

UCLouvain
2018

Fund for Scientific Research
2001-2017

Premiere
2017

The perspective that behavior is often driven by unconscious determinants has become widespread in social psychology. Bargh, Chen, and Burrows' (1996) famous study, which participants unwittingly exposed to the stereotype of age walked slower when exiting laboratory, was instrumental defining this perspective. Here, we present two experiments aimed at replicating original study. Despite use automated timing methods a larger sample, our first experiment failed show priming. Our second...

10.1371/journal.pone.0029081 article EN cc-by PLoS ONE 2012-01-18

The credibility of scientific claims depends upon the transparency research products which they are based (e.g., study protocols, data, materials, and analysis scripts). As psychology navigates a period unprecedented introspection, user-friendly tools services that support open science have flourished. However, plethora decisions choices involved can be bewildering. Here we provide practical guide to help researchers navigate process preparing sharing their choosing repository, for sharing,...

10.1525/collabra.158 article EN cc-by Collabra Psychology 2018-01-01

Objectification refers to treating people as objects rather than persons. When are sexually objectified, they reduced their sexualized bodies or body parts, available for satisfying the desires of others. At same time, research on object and person recognition suggests that perceived configurally, whereas analytically. For example, inversion effect (i.e, inverted stimuli more difficult recognize upright ones) occurs not recognition. Based our suggestion women similarly objects, we...

10.1177/0956797611434748 article EN Psychological Science 2012-04-03

Societal inequality has been found to harm the mental and physical health of its members undermine overall social cohesion. Here, we tested hypothesis that economic is associated with a wish for strong leader in study involving 28 countries from five continents (Study 1, N = 6,112), an Australian community sample 2, 515), two experiments 3a, 96; Study 3b, 296). We correlational (Studies 1 2) experimental 3a 3b) evidence our prediction higher enhances leader. also this relationship mediated...

10.1177/0956797619875472 article EN Psychological Science 2019-09-30

BackgroundThe gut microbiota is altered in obesity and strongly influenced by nutrients xenobiotics. We have tested the impact of native inulin as prebiotic present vegetables added a supplement on microbiota-related outcomes obese patients. Metformin treatment was analyzed potential modulator response.MethodsA randomized, single-blinded, multicentric, placebo-controlled trial conducted 150 patients who received 16 g/d versus maltodextrin, coupled to dietary advice consume inulin-rich -poor...

10.1016/j.clnu.2020.04.005 article EN cc-by-nc-nd Clinical Nutrition 2020-04-14

Taking an approach from religion as a social identity and using large‐scale comparative surveys in five European cities, we investigate when how perceived discrimination is associated with religious identification politicization among the second generation of Turkish Moroccan Muslims. We distinguish support for political Islam action distinct forms politicization. In addition, test mediating role processes Study 1 estimates multi‐group structural equation models Belgium, Netherlands, Sweden....

10.1111/j.2044-8309.2011.02072.x article EN British Journal of Social Psychology 2011-11-28

Abstract Anecdotes of past social movements suggest that Internet‐enabled technologies, especially media platforms, can facilitate collective actions. Recently, however, it has been argued the participatory Internet encourages low‐cost and low‐risk activism—slacktivism—which may have detrimental consequences for groups aim to achieve a purpose. More precisely, low‐threshold digital practices such as signing online petitions or “liking” Facebook page group are thought derail subsequent...

10.1002/ejsp.2084 article EN European Journal of Social Psychology 2015-04-01

This article revisits two classical issues in experimental methodology: experimenter bias and demand characteristics. We report a content analysis of the method section experiments reported psychology journals ( Psychological Science Journal Personality Social Psychology), focusing on aspects procedure associated with these phenomena, such as mention presence experimenter, suspicion probing, handling deception. note that information is very often absent, which prevents observers from gauging...

10.1177/1745691612463704 article EN Perspectives on Psychological Science 2012-11-01

Classical theories of attitude change point to the positive effect source expertise on perceived credibility persuasion, but there is an ongoing societal debate increase in anti-elitist sentiments and conspiracy regarding allegedly untrustworthy power elite. In one correlational ( N = 275) three experimental studies 195, 464, 225), we tested novel idea that people who endorse a conspiratorial mind-set (conspiracy mentality) indeed exhibit markedly different reactions cues epistemic...

10.1177/0146167218768779 article EN Personality and Social Psychology Bulletin 2018-05-02

Sociologists coined the term "anomie" to describe societies that are characterized by disintegration and deregulation. Extending beyond conceptualizations of anomie conflate measurements as 'a state society' a 'state mind', we disentangle these develop an analysis measure this phenomenon focusing on perception society'. We propose encompasses two dimensions: perceived breakdown in social fabric (i.e., lack trust erosion moral standards) leadership deregulation legitimacy effectiveness...

10.1371/journal.pone.0158370 article EN public-domain PLoS ONE 2016-07-06

Over the past several years, two largely separate traditions have collided, leading to controversy over claims about priming. We describe and contrast main accounts of priming effects in cognitive social psychology, focusing especially on role awareness. In so doing, we consider one core points contention: subliminal Whereas psychologists often are interested exploring how operates with without awareness, more commonly assume subliminality order bolster automaticity discuss criteria...

10.1521/soco.2014.32.supp.12 article EN Social Cognition 2014-06-01

Abstract Even though conspiracy theories are diverse, they typically construed as a homogeneous phenomenon. Using classic theorizations of by Popper and Moscovici, we propose to distinguish between belief in upward (i.e., targeting relatively powerful groups) downward powerless groups). The former theorized power‐challenging beliefs the latter being underpinned conservative ideology. Across three studies conducted Belgium (total N = 2363), show that these two types indeed relate differently...

10.1002/ejsp.2769 article EN European Journal of Social Psychology 2021-04-17

The issue of considerable dropout rate in doctoral programs is well documented across a large number countries. However, few studies address the factors associated with completion among Non-U.S. countries, multiple universities and fields research. Nor do they investigate interactions between these factors. present paper aimed to overcome limitations analyzed population students all disciplines two largest French-speaking Community Belgium (N = 1509). Specifically, we focused on several...

10.5430/ijhe.v7n4p143 article EN International Journal of Higher Education 2018-08-15

Research suggests that belief in conspiracy theories (CT) stems from basic psychological mechanisms and is linked to other systems (e.g., religious beliefs). While previous research has extensively examined individual contextual variables associated with CT beliefs, it not yet investigated the role of culture. In current research, we tested, based on a situated cultural cognition perspective, extent which culture predicts beliefs. Using Hofstede's model values, three nation‐level analyses...

10.1111/pops.12716 article EN Political Psychology 2020-12-05

The COVID-19 pandemic has affected the psychological well-being of students. Several stressors (such as socioeconomic and education-related contexts) could influence mental health, well individual relational dimensions. This study proposes to evaluate predictive effect these factors on anxiety depressive symptoms among students in higher education one year after beginning pandemic. A sample 23,307 (Mage = 20.89; SD 1.96; 69.08% women) was assessed through an online self-report questionnaire...

10.3390/ijerph18147445 article EN International Journal of Environmental Research and Public Health 2021-07-12

This article is concerned with the influence of group membership an audience on description in-group. Negative meta-sterotypes (stereotype in-group believed to be held by members a relevant out-group) have aversive consequences self (Vorauer, Main, & O'Connell, 1998). Group may therefore try modify meta-sterotype their advantage confirming positive traits and disconfirming negative ones. Such strategy not when one addresses because does expect them adhere content meta-stereotype. The study...

10.1348/014466601164759 article EN British Journal of Social Psychology 2001-06-01
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