It is widely believed that the demands of living in large, complexly bonded social groups
played a key role in the evolution of human cognition. This review focuses on a critical but …

Friendship is a fundamental part of being human. Understanding which cues indicate
friendship and what friendship entails is critical for navigating the social world. We survey …

While social and emotional learning (SEL) is most familiar as compartmentalized programs
separate from academics, the truth is, all learning is social and emotional. What teachers …

To successfully navigate their social world, humans need to understand and map enduring
relationships between people: Humans need a concept of social affiliation. Here I propose …

What is a group? How do we know to which groups we belong? How do we assign others to
groups? A great deal of theorizing across the social sciences, has conceptualized “groups” …

Social relationships powerfully influence human emotions. Understanding how relationships
influence emotions enables people to make important social inferences, such as what will …

Two studies examined whether children (5‐and 6‐year‐olds; 8‐and 9‐year‐olds, n= 214)
and adults (n= 72) consider social relationship when evaluating unhelpful or helpful actions …

Friendship fundamentally shapes interactions, and predicting other people's affiliations is
crucial for effectively navigating the social world. We investigated how 3-to 11-year-old …

When children divide resources between others, their decisions generally follow principles
of equity (ie, equal pay for equal work) and efficiency (ie, maximizing available resources) …

Secrets carry valuable social information. Because the content of secrets can be damaging
to the secret-keeper's reputation, people should only disclose their secrets to people whom …