Finding your roots: Do DNA ancestry tests increase racial (in)tolerance?

While it is often assumed that Deoxyribonucleic acid (DNA) ancestry results illuminate one's true racial or ethnic lineage, the consequence of this inference remains largely unknown. This leaves two conflictual hypotheses largely untested: Do DNA ancestry tests increase racial tolerance or, alternatively, racial intolerance? Two multiwave experiments aimed to test these hypotheses using either real or bogus DNA ancestry results in combination with random assignment and a tightly controlled repeated-measurements experimental design. Bayesian and inferential analyses on both general and student populations of majority-group members in the United States (i.

A systematic review of first-generation college students' mental health.

To synthesize peer-reviewed research on first-generation college students' mental health. Systematic searches were conducted in 4 databases through 2022 to identify empirical, peer-reviewed, and published articles on first-generation college student anxiety, depression, stress and mental health. Across 62 papers, first-generation college students appeared to experience heightened anxiety, depression and stress when academic activities and social relationships conflicted rather than aligned with interdependent norms.

When and how supporting others can improve life satisfaction: A longitudinal study examining collectivistic values.

Individuals who support others reap mental health benefits from this act. Recent studies have identified individual differences in other-oriented processes that shift who benefits the most from support giving. Yet existing studies have examined people from individualistic societies (e.

The Nature of Islamophobia: A Test of a Tripartite View in Five Countries.

This article provides an examination of the structure of Islamophobia across cultures. Our novel measure-the Tripartite Islamophobia Scale (TIS)-embeds three theoretically and statistically grounded subcomponents of Islamophobia: anti-Muslim prejudice, anti-Islamic sentiment, and conspiracy beliefs. Across six samples (i.

Engaging in extreme activism in support of others' political struggles: The role of politically motivated fusion with out-groups.

Humans are a coalitional, parochial species. Yet, extreme actions of solidarity are sometimes taken for distant or unrelated groups. What motivates people to become solidary with groups to which they do not belong originally? Here, we demonstrate that such distant solidarity can occur when the perceived treatment of an out-group clashes with one's political beliefs (e.

Living in a Genetic World: How Learning About Interethnic Genetic Similarities and Differences Affects Peace and Conflict.

Information about the degree of one's genetic overlap with ethnic outgroups has been emphasized in genocides, is frequently learned about through media reporting, and is increasingly being accessed via personal genetic testing services. However, the consequence of learning about whether your own ethnic group is either genetically related to or genetically distinct from a disliked ethnic group remains unknown. Across four experiments, using diverse samples, measures and contexts, we demonstrate that altering perceptions of genetic overlap between groups in conflict--in this case Arabs and Jews--impacts factors that are directly related to interethnic hostility (e.

How choice modifies preference: neural correlates of choice justification.

When making a difficult choice, people often justify the choice by increasing their liking for the chosen object and decreasing their liking for the rejected object. To uncover the neural signatures of choice justification, we used functional magnetic resonance imaging to monitor neural activity when subjects rated their preference for chosen and rejected musical CDs before and after they made their choices. We observed that the trial-by-trial attitude change (i.