All human societies are permeated by collectively shared entities that govern daily social
interactions and promote coordination and cooperation: norms. While the study of norm …

Chimpanzees and other great apes seem to be much less cooperative than humans overall,
yet they nevertheless reliably help others in many instrumental circumstances. Although in …

Meta-analytic evidence indicates that the quality of the attachment relationship that infants
establish with their primary caregiver has enduring significance for socioemotional and …

Human infants seem to make positive social inferences about individuals who imitate others.
In three preregistered experiments we test if these inferences include an expectation that …

In recent years, psychological researchers have been heavily criticized for generalizing
broadly from narrow samples, a concern that intersects with questions about the validity …

To become competent social agents, young children must make sense of the frequently
opaque behaviors of other people and draw appropriate conclusions from them. This …

Background There are several excellent reviews of prosocial evaluation (eg, Holvoet et al.
2016; Lavoie et al. 2022), so I will direct the interested reader to those for a more thorough …

From their observations of others' behavior, adults quickly form character impressions.
These impressions can be “sticky”, such that adults prioritize information acquired earlier …

For decades, researchers in moral judgment development have described and tried to
explain 25 the so-called 'outcome-to-intent shift'that occurs by late preschool age …

The study of early ontogeny with experimental designs is a defining feature of modern
developmental science. Decades of research with participating preverbal infants and just …