Hans I Jzerman
Biographic Data
| ID | 1753945 |
|---|---|
| NAME | Hans I Jzerman |
| GIVEN NAMES | Hans I |
| FAMILY NAME | Jzerman |
| SIGNATURE | JZERMAN H I |
| AFFILIATIONS | Tilburg University |
| ORCID | 0000-0002-0990-2276 |
| VERIFIED | Yes |
| TOTAL WORKS | 31 |
| TOTAL CITATIONS | 388 |
| AUTHOR COUNT | 31 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 8 |
The Evaluation of Harm and Purity Transgressions in Africans
Improving the generalizability of psychology findings to a culture requires sampling participants in that culture. Yet psychology studies rarely sample from Africa even though Africa represents 17% of the global population. Although Africans can leverage the credibility-revolution initiatives to increase rigor and global representation, capacity building might speed the spread of these initiatives. In this study, we investigated an African-wide r…
Black-and-White” thinking
International audience
Self-administered mindfulness interventions reduce stress in a large, randomized controlled multi-site study
Mindfulness witnessed a substantial popularity surge in the past decade, especially as digitally self-administered interventions became available at relatively low costs. Yet, it is uncertain whether they effectively help reduce stress. In a preregistered (OSF https://doi.org/10.17605/OSF.IO/UF4JZ; retrospective registration at ClinicalTrials.gov NCT06308744) multi-site study (nsites = 37, nparticipants = 2,239, 70.4% women, Mage = 22.4, s.d.age …
Author Correction
The Benefits, Barriers, and Risks of Big-Team Science
Progress in psychology has been frustrated by challenges concerning replicability, generalizability, strategy selection, inferential reproducibility, and computational reproducibility. Although often discussed separately, these five challenges may share a common cause: insufficient investment of intellectual and nonintellectual resources into the typical psychology study. We suggest that the emerging emphasis on big-team science can help address …
Author Correction
A multi-lab test of the facial feedback hypothesis by the Many Smiles Collaboration
Tears evoke the intention to offer social support
Tearful crying is a ubiquitous and likely uniquely human phenomenon. Scholars have argued that emotional tears serve an attachment function: Tears are thought to act as a social glue by evoking social support intentions. Initial experimental studies supported this proposition across several methodologies, but these were conducted almost exclusively on participants from North America and Europe, resulting in limited generalizability. This project …
A multi-country test of brief reappraisal interventions on emotions during the Covid-19 pandemic
To which world regions does the valence-dominance model of social perception apply
Over the past 10 years, Oosterhof and Todorov’s valence–dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgements of faces. Because this model has primarily been developed and tested in Western regions, it is unclear whether these findings apply to other regions. We addressed this question by replicating Oosterhof an…
Use caution when applying behavioural science to policy
The Psychological Science Accelerator
Concerns about the veracity of psychological research have been growing. Many findings in psychological science are based on studies with insufficient statistical power and nonrepresentative samples, or may otherwise be limited to specific, ungeneralizable settings or populations. Crowdsourced research, a type of large-scale collaboration in which one or more research projects are conducted across multiple lab sites, offers a pragmatic solution t…
Many Labs 2
We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories. Using the conventional criterion of statistical significance ( p < .05), we found that 15 (54%) of …
Socially thermoregulated thinking
People as Penguins
This chapter examines the importance of thermoregulation for the human need to belong and for social integration more generally. It considers fundamental patterns in how thermoregulation relates to social cognition, and how—as a result—more complex social integration affects our core body temperatures. This perspective implies that humans are, in one important way, just like penguins: they need warmth and a good huddle when they are cold in order…
Warmer hearts, and warmer, but noisier rooms
Homelike thermoregulation
Investigating Variation in Replicability
Although replication is a central tenet of science, direct replications are rare in psychology. This research tested variation in the replicability of 13 classic and contemporary effects across 36 independent samples totaling 6,344 participants. In the aggregate, 10 effects replicated consistently. One effect – imagined contact reducing prejudice – showed weak support for replicability. And two effects – flag priming influencing conservatism and …
Commentaries and Rejoinder on
While direct replications such as the “Many Labs” project are extremely valuable in testing the reliability of published findings across laboratories, they reflect the common reliance in psychology on single vignettes or stimuli, which limits the scope of the conclusions that can be reached. New experimental tools and statistical techniques make it easier to routinely sample stimuli, and to appropriately treat them as random factors. We encourage…
Does Recalling Moral Behavior Change the Perception of Brightness
Banerjee, Chatterjee, and Sinha (2012) recently reported that recalling unethical behavior led participants to see the room as darker and to desire more light-emitting products (e.g., a flashlight) compared to recalling ethical behavior. We replicated the methods of these two original studies with four high-powered replication studies (two online and two in the laboratory). Our results did not differ significantly from zero, 9 out of 10 of the ef…
Sex Differences in Distress From Infidelity in Early Adulthood and in Later Life
Shackelford and colleagues (2004) found that men, compared to women, are more distressed by sexual than emotional infidelity, and this sex difference continued into older age. We conducted four high-powered replications (total N = 1,952) of this effect and found different results. A meta-analysis of original and replication studies finds the sex difference in younger samples (though with a smaller effect size), and no effect among older samples. …
The Replication Recipe
Psychological scientists have recently started to reconsider the importance of close replications in building a cumulative knowledge base; however, there is no consensus about what constitutes a convincing close replication study. To facilitate convincing close replication attempts we have developed a Replication Recipe, outlining standard criteria for a convincing close replication. Our Replication Recipe can be used by researchers, teachers, an…
Caring for Sharing
Does physical warmth lead to caring and sharing? Research suggests that it does; physically warm versus cold conditions induce prosocial behaviors and cognitions. Importantly, previous research has not traced the developmental origins of the association between physical warmth and affection. The association between physical warmth and sharing may be captured in specific cognitive models of close social relations, often referred to as attachment s…
Warmer Hearts, Warmer Rooms
Conceptual representations of warmth have been shown to be related to people's perceptions of ambient temperature. Based on this premise, we hypothesized that merely thinking about personality traits related to communion (but not agency) influences physical experience of warmth. Specifically, the three studies revealed that (a) perceptions of temperature are influenced by both positive and negative attributes within the communion but not agency d…
Grounding cultural syndromes
The body is a carrier of relatively complex cultural values. Three experiments examined links between body comportment and honor (a cultural syndrome prizing female chastity, familial loyalty, and reputation). We put participants from nonhonor (Anglo‐Americans; Experiment 1) and honor (Latinos; Experiment 2) cultures in upright versus slouched postures and primed them with honor versus control words. In our third experiment, we surveyed participa…
Investigating Variation in Replicability
Although replication is a central tenet of science, direct replications are rare in psychology. This research tested variation in the replicability of 13 classic and contemporary effects across 36 independent samples totaling 6,344 participants. In the aggregate, 10 effects replicated consistently. One effect – imagined contact reducing prejudice – showed weak support for replicability. And two effects – flag priming influencing conservatism and …
The Replication Recipe
Psychological scientists have recently started to reconsider the importance of close replications in building a cumulative knowledge base; however, there is no consensus about what constitutes a convincing close replication study. To facilitate convincing close replication attempts we have developed a Replication Recipe, outlining standard criteria for a convincing close replication. Our Replication Recipe can be used by researchers, teachers, an…
Many Labs 2
We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories. Using the conventional criterion of statistical significance ( p < .05), we found that 15 (54%) of …
Temperature perceptions as a ground for social proximity
Use caution when applying behavioural science to policy
Commentaries and Rejoinder on
While direct replications such as the “Many Labs” project are extremely valuable in testing the reliability of published findings across laboratories, they reflect the common reliance in psychology on single vignettes or stimuli, which limits the scope of the conclusions that can be reached. New experimental tools and statistical techniques make it easier to routinely sample stimuli, and to appropriately treat them as random factors. We encourage…
From perceptual rags to metaphoric riches-Bodily, social, and cultural constraints on sociocognitive metaphors
What leads people to describe some of their interpersonal relationships as "close" and "warm" and others as "distant" and "cold"? Landau, Meier, and Keefer (2010) proposed that conceptual metaphors facilitate social cognition by allowing people to use knowledge from a relatively concrete (source) domain (e.g., physical distance) in understanding a different, usually more abstract (target) concept (e.g., love). We concur that such a notion of meta…
Caring for Sharing
Does physical warmth lead to caring and sharing? Research suggests that it does; physically warm versus cold conditions induce prosocial behaviors and cognitions. Importantly, previous research has not traced the developmental origins of the association between physical warmth and affection. The association between physical warmth and sharing may be captured in specific cognitive models of close social relations, often referred to as attachment s…
Grounding cultural syndromes
The body is a carrier of relatively complex cultural values. Three experiments examined links between body comportment and honor (a cultural syndrome prizing female chastity, familial loyalty, and reputation). We put participants from nonhonor (Anglo‐Americans; Experiment 1) and honor (Latinos; Experiment 2) cultures in upright versus slouched postures and primed them with honor versus control words. In our third experiment, we surveyed participa…
A multi-lab test of the facial feedback hypothesis by the Many Smiles Collaboration
A multi-country test of brief reappraisal interventions on emotions during the Covid-19 pandemic
To which world regions does the valence-dominance model of social perception apply
Over the past 10 years, Oosterhof and Todorov’s valence–dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgements of faces. Because this model has primarily been developed and tested in Western regions, it is unclear whether these findings apply to other regions. We addressed this question by replicating Oosterhof an…
Tears evoke the intention to offer social support
Tearful crying is a ubiquitous and likely uniquely human phenomenon. Scholars have argued that emotional tears serve an attachment function: Tears are thought to act as a social glue by evoking social support intentions. Initial experimental studies supported this proposition across several methodologies, but these were conducted almost exclusively on participants from North America and Europe, resulting in limited generalizability. This project …
Homelike thermoregulation
Socially thermoregulated thinking
Does Recalling Moral Behavior Change the Perception of Brightness
Banerjee, Chatterjee, and Sinha (2012) recently reported that recalling unethical behavior led participants to see the room as darker and to desire more light-emitting products (e.g., a flashlight) compared to recalling ethical behavior. We replicated the methods of these two original studies with four high-powered replication studies (two online and two in the laboratory). Our results did not differ significantly from zero, 9 out of 10 of the ef…
Sex Differences in Distress From Infidelity in Early Adulthood and in Later Life
Shackelford and colleagues (2004) found that men, compared to women, are more distressed by sexual than emotional infidelity, and this sex difference continued into older age. We conducted four high-powered replications (total N = 1,952) of this effect and found different results. A meta-analysis of original and replication studies finds the sex difference in younger samples (though with a smaller effect size), and no effect among older samples. …
Warmer Hearts, Warmer Rooms
Conceptual representations of warmth have been shown to be related to people's perceptions of ambient temperature. Based on this premise, we hypothesized that merely thinking about personality traits related to communion (but not agency) influences physical experience of warmth. Specifically, the three studies revealed that (a) perceptions of temperature are influenced by both positive and negative attributes within the communion but not agency d…
Warmer hearts, and warmer, but noisier rooms
Culture, psyche, and body make each other up
The commentaries make important points, including ones about the purposeful uses of embodiment effects. Research examining such effects needs to look at how such effects play themselves out in people's everyday lives. Research might usefully integrate work on embodiment with work on attribution and work in other disciplines concerned with body–psyche connections (e.g., research on somaticizing versus “psychologizing” illnesses and hypercognizing …
A bumpy train ride
The present research examined the relationship between adherence to honor norms and emotional reactions after an insult. Participants were 42 Dutch male train travelers, half of whom were insulted by a confederate who bumped into the participant and made a degrading remark. Compared with insulted participants with a weak adherence to honor norms, insulted participants with a strong adherence to honor norms were (a) more angry, (b) less joyful, (c…
Just World and the Emotional Defense of Self
This research examines how individuals with different affect regulation strategies cope with just-world threats. Our study demonstrated that individuals who poorly downregulate negative affect (a state-oriented style) more avidly attempt to defend a just world after this opportunity is offered via an authority figure when that belief of a just world was threatened than do individuals who successfully downregulate negative affect (an action-orient…
The Thermometer of Social Relations
“Holding warm feelings toward someone” and “giving someone the cold shoulder” indicate different levels of social proximity. In this article, we show effects of temperature that go beyond these metaphors people live by. In three experiments, warmer conditions, compared with colder conditions, induced (a) greater social proximity, (b) use of more concrete language, and (c) a more relational focus. Different temperature conditions were created by e…
Culture, psyche, and body make each other up
The commentaries make important points, including ones about the purposeful uses of embodiment effects. Research examining such effects needs to look at how such effects play themselves out in people's everyday lives. Research might usefully integrate work on embodiment with work on attribution and work in other disciplines concerned with body–psyche connections (e.g., research on somaticizing versus “psychologizing” illnesses and hypercognizing …
Temperature perceptions as a ground for social proximity
Grounding cultural syndromes
The body is a carrier of relatively complex cultural values. Three experiments examined links between body comportment and honor (a cultural syndrome prizing female chastity, familial loyalty, and reputation). We put participants from nonhonor (Anglo‐Americans; Experiment 1) and honor (Latinos; Experiment 2) cultures in upright versus slouched postures and primed them with honor versus control words. In our third experiment, we surveyed participa…
From perceptual rags to metaphoric riches-Bodily, social, and cultural constraints on sociocognitive metaphors
What leads people to describe some of their interpersonal relationships as "close" and "warm" and others as "distant" and "cold"? Landau, Meier, and Keefer (2010) proposed that conceptual metaphors facilitate social cognition by allowing people to use knowledge from a relatively concrete (source) domain (e.g., physical distance) in understanding a different, usually more abstract (target) concept (e.g., love). We concur that such a notion of meta…
The Replication Recipe
Psychological scientists have recently started to reconsider the importance of close replications in building a cumulative knowledge base; however, there is no consensus about what constitutes a convincing close replication study. To facilitate convincing close replication attempts we have developed a Replication Recipe, outlining standard criteria for a convincing close replication. Our Replication Recipe can be used by researchers, teachers, an…
Caring for Sharing
Does physical warmth lead to caring and sharing? Research suggests that it does; physically warm versus cold conditions induce prosocial behaviors and cognitions. Importantly, previous research has not traced the developmental origins of the association between physical warmth and affection. The association between physical warmth and sharing may be captured in specific cognitive models of close social relations, often referred to as attachment s…
Warmer Hearts, Warmer Rooms
Conceptual representations of warmth have been shown to be related to people's perceptions of ambient temperature. Based on this premise, we hypothesized that merely thinking about personality traits related to communion (but not agency) influences physical experience of warmth. Specifically, the three studies revealed that (a) perceptions of temperature are influenced by both positive and negative attributes within the communion but not agency d…
Investigating Variation in Replicability
Although replication is a central tenet of science, direct replications are rare in psychology. This research tested variation in the replicability of 13 classic and contemporary effects across 36 independent samples totaling 6,344 participants. In the aggregate, 10 effects replicated consistently. One effect – imagined contact reducing prejudice – showed weak support for replicability. And two effects – flag priming influencing conservatism and …
Commentaries and Rejoinder on
While direct replications such as the “Many Labs” project are extremely valuable in testing the reliability of published findings across laboratories, they reflect the common reliance in psychology on single vignettes or stimuli, which limits the scope of the conclusions that can be reached. New experimental tools and statistical techniques make it easier to routinely sample stimuli, and to appropriately treat them as random factors. We encourage…
Does Recalling Moral Behavior Change the Perception of Brightness
Banerjee, Chatterjee, and Sinha (2012) recently reported that recalling unethical behavior led participants to see the room as darker and to desire more light-emitting products (e.g., a flashlight) compared to recalling ethical behavior. We replicated the methods of these two original studies with four high-powered replication studies (two online and two in the laboratory). Our results did not differ significantly from zero, 9 out of 10 of the ef…
Sex Differences in Distress From Infidelity in Early Adulthood and in Later Life
Shackelford and colleagues (2004) found that men, compared to women, are more distressed by sexual than emotional infidelity, and this sex difference continued into older age. We conducted four high-powered replications (total N = 1,952) of this effect and found different results. A meta-analysis of original and replication studies finds the sex difference in younger samples (though with a smaller effect size), and no effect among older samples. …
Warmer hearts, and warmer, but noisier rooms
Homelike thermoregulation
People as Penguins
This chapter examines the importance of thermoregulation for the human need to belong and for social integration more generally. It considers fundamental patterns in how thermoregulation relates to social cognition, and how—as a result—more complex social integration affects our core body temperatures. This perspective implies that humans are, in one important way, just like penguins: they need warmth and a good huddle when they are cold in order…
The Psychological Science Accelerator
Concerns about the veracity of psychological research have been growing. Many findings in psychological science are based on studies with insufficient statistical power and nonrepresentative samples, or may otherwise be limited to specific, ungeneralizable settings or populations. Crowdsourced research, a type of large-scale collaboration in which one or more research projects are conducted across multiple lab sites, offers a pragmatic solution t…
Many Labs 2
We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories. Using the conventional criterion of statistical significance ( p < .05), we found that 15 (54%) of …
Socially thermoregulated thinking
Use caution when applying behavioural science to policy
Tears evoke the intention to offer social support
Tearful crying is a ubiquitous and likely uniquely human phenomenon. Scholars have argued that emotional tears serve an attachment function: Tears are thought to act as a social glue by evoking social support intentions. Initial experimental studies supported this proposition across several methodologies, but these were conducted almost exclusively on participants from North America and Europe, resulting in limited generalizability. This project …
A multi-country test of brief reappraisal interventions on emotions during the Covid-19 pandemic
To which world regions does the valence-dominance model of social perception apply
Over the past 10 years, Oosterhof and Todorov’s valence–dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgements of faces. Because this model has primarily been developed and tested in Western regions, it is unclear whether these findings apply to other regions. We addressed this question by replicating Oosterhof an…
Author Correction
Psychology (29 works) · Social Psychology (20 works) · Cognitive psychology (9 works) · Developmental psychology (9 works) · Social Psychology (9 works) · Cultural Differences and Values (8 works) · Psychology of Moral and Emotional Judgment (8 works) · Evolutionary Psychology and Human Behavior (7 works) · Perception (7 works) · Behavioral Health and Interventions (6 works)