It's all connected: Collectivism, climate change, and COVID-19.

Societal challenges like climate change and COVID-19 can be interrelated. The present research examines collectivism as a cultural value that is associated with the tendency to perceive such important interconnectedness. We further examine whether collectivism predicts perceiving interconnectedness specifically for scientifically valid relationships, or generally, regardless of their validity.

Assessing Conspiracist Ideation Reliably, Validly, and Efficiently: A Psychometric Comparison of Five Short-Form Measures.

Choosing a short-form measure of conspiracist ideation (i.e., the tendency to believe in conspiracy theories) is fraught.

Ideological diversity of media consumption predicts COVID-19 vaccination.

This study examines the relationship between respondents' vaccine hesitancy, reported media consumption patterns, ideological leanings, and trust in science. A large-scale survey conducted in the US in 2022 (N = 1,646) assessed self-reported COVID-19 vaccination, trust in science, and reported media consumption. Findings show that, regardless of personal ideology, individuals who consumed less conservative media and had a more ideologically diverse media diet were more likely to be fully vaccinated and boosted.

Political ideology shapes risk and benefit judgments of COVID-19 vaccines.

In April 2021, the use of the Johnson & Johnson COVID-19 vaccine was paused to investigate whether it had caused serious blood clots to a small number of women (six out of 6.8 million Americans who had been administered that vaccine). As these events were unfolding, we surveyed a sample of Americans (N = 625) to assess their reactions to this news, whether they supported the pausing of the vaccine, and potential psychological factors underlying their decision.

Structured reflection increases intentions to reduce other people's health risks during COVID-19.

People believe they should consider how their behavior might negatively impact other people, Yet their behavior often increases others' health risks. This creates challenges for managing public health crises like the COVID-19 pandemic. We examined a procedure wherein people reflect on their personal criteria regarding how their behavior impacts others' health risks.

Motivated Down-Regulation of Emotion and Compassion Collapse Revisited.

Compassion collapse is a phenomenon where feelings and helping behavior decrease as the number of needy increases. But what are the underlying mechanisms for compassion collapse? Previous research has attempted to pit two explanations: Limitations of the feeling system vs. motivated down-regulation of emotion, against each other.

Politicians polarize and experts depolarize public support for COVID-19 management policies across countries.

Political polarization impeded public support for policies to reduce the spread of COVID-19, much as polarization hinders responses to other contemporary challenges. Unlike previous theory and research that focused on the United States, the present research examined the effects of political elite cues and affective polarization on support for policies to manage the COVID-19 pandemic in seven countries ( = 12,955): Brazil, Israel, Italy, South Korea, Sweden, the United Kingdom, and the United States. Across countries, cues from political elites polarized public attitudes toward COVID-19 policies.

Low numeracy is associated with poor financial well-being around the world.

Numeracy refers to the ability to use numbers, including converting percentages (e.g., 10%) into absolute frequencies (e.

Why we dehumanize illegal immigrants: A US mixed-methods study.

Dehumanization is a topic of significant interest for academia and society at large. Empirical studies often have people rate the evolved nature of outgroups and prior work suggests immigrants are common victims of less-than-human treatment. Despite existing work that suggests who dehumanizes particular outgroups and who is often dehumanized, the extant literature knows less about why people dehumanize outgroups such as immigrants.

Investigating the Neural Correlates of the Affect Heuristic Using Functional Magnetic Resonance Imaging.

This study investigated the neural correlates of the so-called affect heuristic, which refers to the phenomenon whereby individuals tend to rely on affective states rather than rational deliberation of utility and probabilities during judgments of risk and utility of a given event or scenario. The study sought to explore whether there are shared regional activations during both judgments of relative risk and relative benefit of various scenarios, thus being a potential candidate of the affect heuristic. Using functional magnetic resonance imaging, we developed a novel risk perception task, based on a preexisting behavioral task assessing the affect heuristic.

Characterizing public perceptions of social and cultural impacts in policy decisions.

Social scientists and community advocates have expressed concerns that many social and cultural impacts important to citizens are given insufficient weight by decision makers in public policy decision-making. In two large cross-sectional surveys, we examined public perceptions of a range of social, cultural, health, economic, and environmental impacts. Findings suggest that valued impacts are perceived through an initial lens that highlights both tangibility (how difficult it is to understand, observe, and make changes to an impact) and scope (how broadly an impact applies).

Risk Perception and Risk Analysis in a Hyperpartisan and Virtuously Violent World.

I shall discuss, from a personal perspective, research on risk perception that has created an understanding of the dynamic interplay between an appreciation of risk that resides in us as a feeling and an appreciation of risk that results from analysis. In some circumstances, feelings reflect important social values that deserve to be considered along with traditional analyses of physical and economic risk. In other situations, both feelings and analyses may be shaped by powerful cognitive biases and deep social and partisan prejudices, causing nonrational judgments and decisions.

The More Who Die, the Less We Care: Evidence from Natural Language Analysis of Online News Articles and Social Media Posts.

Considerable amount of laboratory and survey-based research finds that people show disproportional compassionate and affective response to the scope of human mortality risk. According to research on "psychic numbing," it is often the case that the more who die, the less we care. In the present article, we examine the extent of this phenomenon in verbal behavior, using large corpora of natural language to quantify the affective reactions to loss of life.

Virtuous violence from the war room to death row.

How likely is it that someone would approve of using a nuclear weapon to kill millions of enemy civilians in the hope of ending a ground war that threatens thousands of American troops? Ask them how they feel about prosecuting immigrants, banning abortion, supporting the death penalty, and protecting gun rights and you will know. This is the finding from two national surveys of Democrats and Republicans that measured support for punitive regulations and policies across these four seemingly unrelated issues, and a fifth, using nuclear weapons against enemy civilians (in survey 1) or approving of disproportionate killing with conventional weapons (in survey 2). Those who support these various policies that threaten harm to many people tend to believe that the victims are blameworthy and it is ethical to take actions or policies that might harm them.

The Affect Heuristic and Risk Perception - Stability Across Elicitation Methods and Individual Cognitive Abilities.

The reliance on feelings when judging risks and benefits is one of the most fundamental valuation processes in risk perception. Although previous research suggests that the affect heuristic reliably predicts an inverse correlation between risk and benefit judgments, it has not yet been tested if the affect heuristic is sensitive to elicitation method effects (joint/separate evaluation) and to what extent individual differences in cognitive abilities may mediate the risk-benefit correlation. Across two studies we find that (1) the risk-benefit correlation is stable across different elicitation methods and for different domains (e.

Brain imaging evidence for why we are numbed by numbers.

We as humans do not value lives consistently. While we are willing to act for one victim, we often become numb as the number of victims increases. The empathic ability to adopt others' perspectives is essential for motivating help.

41st Annual North American Meeting of the Society for Medical Decision Making; October 21, 2019; Portland, Oregon Keynote Address The More Who Die, the Less We Care: Confronting the Deadly Arithmetic of Compassion.

In this keynote address delivered at the 41st Annual North American Meeting of the Society for Medical Decision Making, I discuss the psychology behind valuing human lives. Research confirms what we experience in our daily lives. We are inconsistent and sometimes incoherent in our valuation of human life.

41st Annual North American Meeting of the Society for Medical Decision Making; October 21, 2019; Portland, Oregon Keynote Address The More Who Die, the Less We Care: Confronting the Deadly Arithmetic of Compassion.

In this keynote address delivered at the 41st Annual North American Meeting of the Society for Medical Decision Making, I discuss the psychology behind valuing human lives. Research confirms what we experience in our daily lives. We are inconsistent and sometimes incoherent in our valuation of human life.

Social, psychological, and demographic characteristics of dehumanization toward immigrants.

This study extends the current body of work on dehumanization by evaluating the social, psychological, and demographic correlates of blatant disregard for immigrants. Participants ( = 468) were randomly assigned to read a scenario where 1) an immigrant or 2) an immigrant and their child were caught illegally crossing the southern border of the United States, and then rated how long they should spend in jail if convicted. Participants reported that they would sentence the immigrant to more jail time than the immigrant and child.

Affective calculus: The construction of affect through information integration over time.

Humans receive a constant stream of input that potentially influence their affective experience. Despite intensive research on affect, it is still largely unknown how various sources of information are integrated into the single, unified affective features that accompany consciousness. Here, we aimed to investigate how a stream of evocative input we receive is dynamically represented in self-reported affect.

US Adult Smokers' Perceived Risk of Fire or Explosion-Related Injury Caused by Electronic Nicotine Delivery Systems.

Objectives: Publicity on incidents of electronic nicotine delivery systems (ENDS) exploding or catching fire may influence smokers' risk perceptions and decisions about using ENDS for quitting smoking. We examined combustible cigarette smokers' perceptions of the possibility of injury from exploding ENDS and the relationship of those perceptions to ENDS use, perceived risk relative to smoking, and perceived costs and benefits of ENDS use.

Methods: We used data from the 2017 Tobacco Products and Risk Perceptions Survey of a national probability sample of US adults, conducted online in August and September 2017.

Sarah Lichtenstein (1933-2017).

This article memorializes Sarah Lichtenstein (1933-2017). Lichtenstein is aptly described as a "powerhouse in the field of decision-making research." In addition to her work on preference and probability estimation, Sarah, Baruch Fischhoff, and the author co-developed what has come to be known as the psychometric paradigm for the study of risk perception.

Changing Perceptions of Harm of e-Cigarette vs Cigarette Use Among Adults in 2 US National Surveys From 2012 to 2017.

Importance: Debate is ongoing about whether the scientific evidence of the health risks of electronic cigarettes (e-cigarettes) compared with combustible cigarettes (hereinafter referred to as cigarettes) has been accurately communicated to the public. Large representative surveys are needed to examine how the public perceives the health risk of e-cigarettes and how their perceptions change over time.

Objective: To examine how US adults perceived the harm of e-cigarettes relative to cigarettes and how their perception has changed from 2012 to 2017.

It depends: Partisan evaluation of conditional probability importance.

Policies to suppress rare events such as terrorism often restrict co-occurring categories such as Muslim immigration. Evaluating restrictive policies requires clear thinking about conditional probabilities. For example, terrorism is extremely rare.

Little cigars and cigarillos: Affect and perceived relative harm among U.S. adults, 2015.

Introduction: Similar to cigarette smoking, consumption of cigars delivers nicotine and byproducts of tobacco combustion and elevates the risk of addiction, illness, and premature death. This study examined the relationship of affect, perceived relative harm, and LCC smoking behavior among U.S.