As adults, we might understand that beliefs often spread because people are strongly influenced by their friends, family, and other social connections. However, do we think those influences are strong enough to overrule direct evidence of a friend's unreliability? And do preschoolers expect people to show such biases toward friends and to…

Young children robustly distinguish between moral norms and conventional norms (Smetana, 1984; Yucel et al., 2020). In existing research, norms about the fair distribution of resources are by definition considered part of the moral domain; they are not distinguished from other moral norms such as those involving physical harm. Yet an understanding…

Ingroup favoritism influences third-party norm enforcement: Third-party punishers are more lenient when an ingroup member has been unfair. By contrast, in 2-party contexts, where punishers are the victims of unfairness, group bias effects are absent or inconsistent. Thus, group bias appears to be particularly influential when enforcing fairness…

Secrets play a powerful role in human social relationships. Here, we examine the developmental trajectory of 3- to 10-year-old children's (N = 630) expectations about (a) how relationships impact whether people will keep secrets, and (b) how relationships are impacted when a confidee keeps versus tells a confider's secret. Sophisticated…

Children often encounter events that bear on their moral and other evaluations, such as physical aggression and material disorder. Children's perceptions and evaluations are decisive for how they respond to and learn from these everyday events. Using a new method for investigating the development of social perceptions and evaluations, researchers…

Ageism is the most prevalent form of prejudice and is experienced by both older and younger people. Little is known about whether these experiences are interdependent or have common origins. We analyze data from 8,117 older (aged 70 and over) and 11,647 younger respondents (15-29 years) in representative samples from 29 countries in the European…

To elucidate the processes underlying the cultural construction of adolescence, this research examined youth's stereotypes about teens in Hong Kong and Chongqing, a relatively less developed city in Mainland China. Youth (N = 1,269) reported on their teen stereotypes and problem behavior in the fall and spring of 7th grade. Youth in Hong Kong (vs.…

The development of implicit and explicit racial attitudes were investigated in 542 White, Pardo, and Black Brazilian children and adolescents (aged 6 to 14) from 2 different regional contexts that vary dramatically in their racial diversity, Bahia (BA) and Rio Grande do Sul (RS). Results revealed the pervasive presence of race biases favoring…

Making sense of human actions involves thinking about both "endogenous" influences (the internal mental states of agents) and "exogenous" influences (social, moral, and interpersonal constraints). Culture impacts how we weight the relative causal influence of these two influences. To examine these cultural influences in depth,…

Moral justifications work, when they do, by invoking values that are shared in the common ground of the interlocutors. We asked 3- and 5-year-old peer dyads (N = 144) to identify and punish norm transgressors. In the moral condition, the transgressor violated a moral norm (e.g., by stealing); in the social rules condition, she/he violated a…

The present study investigated age-related changes in the intergroup allocation of resources depending on whether the ingroup norm was competitive or cooperative. Participants included children (M[subscript age] = 8.69), adolescents (M[subscript age] = 13.81), and adults (M[subscript age] = 20.89), (N = 263) who were inducted into simulated groups…

Person × Environment mismatch theory has been applied to understanding how the classroom social ecology moderates associations between peer victimization and socioemotional well-being. In 2004, Bellmore et al. applied this theory to the ethnic composition and social climate of the classroom. The current study tested whether their findings…

This study explored age-related changes in Chinese and Korean children's fairness judgments and reasoning regarding the gendered division of household labor. The majority of previous research on this issue has focused on adults' experiences and has been conducted in Western countries. Interviews were conducted with 133 children, 65 Chinese and 68…

Although literature provides strong evidence for the beneficial role of outgroup contact, longitudinal knowledge regarding the formation and change of outgroup contact remains improvable. Using a longitudinal, large-scale data set including 6,726 majority and minority participants (M[subscript age] = 14.98 years at Wave 1; 55% female) from 4…

This study examined mostly lower-middle-income Latino (37%) and African American (33%) adolescents' (N = 90, M[subscript age] = 15.90) conceptions of how U.S. wealth is and ought to be distributed, and whether these judgments are related to adolescents' views about societal and legal fairness and their immediate academic plans. Individually…