As young as 3 years old, children rely on a mutual intentionality framework to confer group membership--that is, agreement between a joiner ("I want to be in your group") and group ("We want you to be in our group"). Here, we tested whether children apply this cognitive framework in the context of identity-based groups,…

It is generally accepted that all humans have a profound need to belong and that a sense of 'belonging together' is a prerequisite for creating political communities. Many of our existing models for this 'first person plural' fail to fully account for the increased global mobility of persons which can all too often result in serial attachments at…

We systematically compared beliefs about animal (e.g., "lion"), artifactual (e.g., "hammer"), and institutional (e.g., "police officer") categories, aiming to identify whether people draw different inferences about which categories are subjective and which are socially constituted. We conducted two studies with 270…

Engaging in prosocial behavior is costly. By selectively directing prosocial behavior toward individuals with a high probability of reciprocating, we are able to offset these potential costs and maintain a sustainable prosocial system. Often, we determine whether an individual will make a good prosocial partner through the observation of their…

Children develop rich concepts of social categories throughout early and middle childhood. Whereas we know much about the development and consequences of many social categories individually, we know less about the development of representations at the intersection of multiple categories--for instance, how children think about race and gender…

Transitioning into child care can bring complex emotional tensions and have a lasting and powerful impact on future separations and caregiving encounters. Despite the increasing number of children in child care programmes and the complexity surrounding the phenomenon, little attention has been given to especially very young children's entry into…

This article seeks to connect ethnographic findings from a study on parenting, childcare and early childhood in Chile's Mapuche communities with facets of the LOPI model. From Facet 1, we observe that children are included in social situations from an early stage, which empowers them to learn how to interact through such instances as greeting…

Background: More and more children are experiencing what have been termed adverse childhood experiences. An individual's response to these stressful events determines whether or not they are considered traumatic -- whereby the experience is so overwhelming that it engulfs their coping mechanisms leading to lasting negative effects on wellbeing.…

This study examined preschoolers' social inclusion--the active involvement of new partners into social interactions--in different intergroup contexts. Using an interactive paradigm, 3- to 5-year-old German children played a ball-tossing game with 2 puppets in which 1 puppet initiated the game with the child and another approached the game. In…

Group membership is a strong driver of everyday life in humans, influencing similarity judgments, trust choices, and learning processes. However, its ontogenetic development remains to be understood. This study investigated how group membership, age, sex, and identification with a team influenced 39- to 60-month-old children (N = 94) in a series…

Theoretical and empirical research is challenging long-held assumptions about how culture shapes children's thinking, emotions, and actions. No longer is 'culture' thought to be a family-based characteristic that operates upon children's development in predictable ways. Instead, culture is considered inseparable from the developmental process, in…

Research suggests that young children transgress conventional rules in every culture and society. In this article, the argument is made that rule teaching and learning provide insight into how children learn to be part of a group. The research question addressed is, "Why do some children transgress the rules if their actions risk jeopardising…

Recent research has shown that infants are more likely to engage with in-group over out-group members. However, it is not known whether infants' learning is influenced by a model's group membership. This study investigated whether 14-month-olds ("N" = 66) selectively imitate and adopt the preferences of in-group versus out-group members.…

As classrooms continue to diversify, there is an increasing need to understand children's inclusive behaviours and moral reasoning. Research shows that epistemic beliefs (beliefs about knowing and knowledge) can influence reasoning for adults, but we know little about this relationship in younger children or how classroom contexts relate to…

Three studies examined the communication of naïve theories of social groups in conversations between parents and their 4-year-old children (N = 48). Parent-child dyads read and discussed a storybook in which they either explained why past social interactions had occurred (Study 1) or evaluated whether future social interactions should occur…