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 many contexts the helping behavior of chimpanzees is quite similar to that of human children, recent studies using both behavioral and psychophysiological paradigms have…

While a wealth of research evidence has highlighted the significant impact of prosocial modeling on shaping children's sharing behavior, the mechanism underlying this effect remains less understood. Here we consider the goal contagion account whereby children recognize the prosocial "goal" of others' actions and these goals are…

White children's effortful control (EC), parents' implicit racial attitudes, and their interaction were examined as predictors of children's prosocial behavior toward White versus Black recipients. Data were collected from 171 White children (55% male, M[subscript age] = 7.13 years, SD = 0.92) and their parent in 2017. Prosocial behavior toward…

Cross-lagged panel designs were used to examine longitudinal and potential (bi)directional relationships between primary caregiver reported sibling relationship quality and the behaviors of children with intellectual disability (n = 297) and their closest in age siblings. The behavioral and emotional problems of the child with intellectual…

Adults often act considerately toward others, for example, by leaving the last cookie on a plate or stepping aside on a busy sidewalk. What do young children infer from observing considerate behavior? In three preregistered studies, we assess how young children evaluate considerate and inconsiderate behavior by showing them animated videos in…

The present review aimed to examine cross-cultural differences (eastern vs western cultures) in the evaluation of antisocial and prosocial lies through two meta-analyses. A total of 10 studies consisting of 2,347 participants between 5 and 12 years of age were included. Both meta-analyses did not find significant cross-cultural differences on…

Prior studies have indicated that prosocial behavior might be a protective factor for developing internalizing and externalizing behavioral problems. However, little research has been conducted on within-person changes of prosocial behavior and behavioral problems over time. With random-intercept cross-lagged panel models (RI-CLPMs), the current…

A novel coronavirus, SARS-CoV-2, has spread widely throughout the world. To reduce the spread of infection, children are prevented from going to school and have fewer opportunities for in-person communication. Such changes in the everyday lives of children might influence their socio-emotional behaviors; however, the whole picture of the possible…

Advantageous inequity aversion emerges relatively late in child development, yet the mechanisms explaining its late emergence are poorly understood. Here, we ask whether children begin to reject advantageous inequity, a costly form of fairness, once reputational concerns are in place. Specifically, we examine the role of peer monitoring in…

Parents and siblings play a vital role in promoting and inhibiting the development of comforting behaviour -- a typical prosocial behaviour. This study aims to explore the dual mediating model of positive and negative sibling relationships between parental self-efficacy (PSE) and firstborn children's comforting behaviours. We enrolled 163…

We tested a novel methodological approach to examine associations between characteristics of autistic children and outcomes for siblings. Cluster analysis was used to define five groups of children with autism (n = 168) based on autism symptoms, adaptive behavior, pro-social behavior, and behavior problems. Primary and secondary parent carers, and…

The moment a child walks into a new classroom, teachers and classmates form an impression based on minimal information. Yet, little is known about the accuracy of such impressions when it concerns children's social functioning at school. The current study examined the accuracy of children's, teachers' and adults' impressions of 18 unacquainted…

Guilt theoretically functions to motivate reparative behaviors, which, in turn, theoretically alleviate guilt and prevent depression. Although empirical research supports these theories in adults, studies have not investigated causal relations between guilt and reparative behaviors in children. Thus, this study examined whether guilt motivates…

Amid protracted conflict, children are raised in divided contexts that shape the development of their intergroup attitudes and behaviors. Social identity development theory (SIDT) suggests that in-group preference may contribute to more negative out-group attitudes and behaviors in middle childhood. In such contexts, in-group favoritism may shape…

We assessed the psychometric properties of the Social Behavior Questionnaire (SBQ), a 30-item questionnaire evaluating social (e.g., disruptive behaviors, bullying) and emotional problems (e.g., anxiety, depression) among children aged 3.5-12 years. Children (n = 1,950, 50.21% boys) were drawn from the Quebec Longitudinal Study of Child…