A foundational mechanism underlying human cooperation is reciprocity. In the context of repeated interactions with others, it is not always clear the degree to which in-kind responses reflect responsiveness to partners' prior behaviors ("reactive" responses), an interest unrelated to the partner ("nonreactive" responses), or…

The second year of life is a time of formative developmental change as basic behavioral systems undergo rapid integration and expansion. This study examined the developmental trajectories of social-emotional (SoE) outcomes and the effects of infant sex and household chaos (HC) on the development of SoE outcomes across the second year of life. The…

Across all cultures, parents have intuitive ideas ("ethnotheories") of what undesirable child characteristics are as well as how to explain them. Yet there have been relatively few cross-cultural comparisons of parents' ethnotheories about the nature and causes of child misbehavior. 108 mothers of 5-year-old children from the United…

In this study, our objective was to examine the relationship between the self-perception and sexual development of children aged between five and six. The study group of the study included 110 children in the five-six age group attending pre-primary education institutions in Erzincan city center and their mothers. As part of this research, the…

Measurement of early childhood development at the population level has traditionally been neglected in Latin America. In this context, Uruguay stands out for having two population-based protocols: the Nutrition, Child Development and Health Survey (ENDIS), a home survey, and the School Readiness - Child Development Inventory (INDI). This paper…

This study quantified changes in self-reported sexual orientation from adolescence to early adulthood, and whether childhood gender nonconformity (GNC) predicted sexual orientation changes. Youth (2,678 boys and 3,359 girls; 96.09% ethnically White) from the Avon Longitudinal Study of Parents and Children (ALSPAC) were included. Self-reported…

Purpose: During the past decades, China has seen a rapid urbanization that has (re)shaped not only its city landscape but also (re)created public space where children live, play, and learn. However, little research has focused on how urban public space influences young children's learning and development and how parents navigate children's…

Interest in social emotional learning (SEL) is higher than ever, as parents, educators, and policymakers recognize that children need more than cognitive skills for later life success. However, most SEL research has been conducted in formal education settings. This article describes results from an empirical study of 4-5 years old SEL in two…

The results of studies on early competences suggest that the child's delay of gratification (DoG) ability is a major predictor of school readiness (SR). However, there are no direct data or convincing explanations as to how DoG translates into preschool children's readiness to commence school education. Aiming at a better understanding of the…

Numerous studies suggest that by elementary school, children have implicit and explicit gender stereotypes about the toys, activities, roles, and abilities associated with boys vs. girls. Furthermore, these stereotypes have been shown to affect children's goals and behaviors, leading them to pursue activities that are associated with their own…

The current study investigates how internalizing and externalizing problems develop reciprocally across infancy to middle childhood, in relation to children's gender, cognitive functioning, socioeconomic status, and parental stress. The study also examines the impact of the developmental cascade of internalizing and externalizing problems on…

Inhibitory control has been widely studied in association with social and academic adjustment. However, prior studies have generally overlooked the potential heterotypic continuity of inhibitory control and how this could affect assessment and understanding of its development. In the present study, we systematically considered heterotypic…

Continuity of pre-k and kindergarten classroom experiences is a key area of interest for early childhood researchers interested in supporting public pre-k children's development over time. To advance the empirical evidence on this topic, this study examined whether differences in classroom experiences as children transition from pre-k to…

Playing is essential for the development of higher psychological functions. The purpose of this study is to demonstrate that playing constitutes an essential step in children's socio-cognitive development by describing playtime as the indicator of the gradual overcoming of self-centred thinking, with a view to acquiring new social adjustment…

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…