Teachers and parents often scaffold children to help others. Not all help is equally beneficial, however. We know very little about the ways in which children distribute different types of help. Across three preregistered studies, we examined when children provide others with help that can hamper learning (outcome-oriented help, e.g., correct…

Imitation plays a crucial role in early social learning. Numerous studies indicate that young children copy even actions that are clearly irrelevant for goal achievement--a phenomenon called overimitation (OI). The present study tested whether this finding can be generalized to different forms of faithful nonsense imitation presented in different…

Although exploratory play is considered a hallmark of cognitive development and learning, relatively few studies have been able to quantitatively characterize the shifts that may occur in children's approach to exploration. One reason for this gap is due to challenges coding and analyzing children's exploratory play behavior. In our paper, we…

Delay discounting tasks measure the relation between reinforcer delay and efficacy. The present study established the association between delay discounting and classroom behavior and introduced a brief measure quantifying sensitivity to reward delays for school-aged children. Study 1 reanalyzed data collected by Reed and Martens (J Appl Behav Anal…

Children with a history of behaviorally inhibited (BI) temperament face a heightened risk for anxiety disorders and often use control strategies that are less planful. Although these relations have been observed concurrently in early childhood, middle childhood, and adolescence, few studies leverage longitudinal data to examine long-term…

Children are exposed to many trace elements throughout their development. Given their ubiquity and potential to have effects on children's neurodevelopment, these exposures are a public health concern. This study sought to identify trace element mixture-associated deficits in learning behavior using operant testing in a prospective cohort. We…

In the current study, we conducted a brief assessment within a multielement design to identify motivating operations (MOs) that increased or decreased the value of negative reinforcement for children with a history of challenging behavior when presented with tasks or demands. For three of the four participants, we identified specific MOs that…

Preschool children naturally display competitive behavioral patterns. The purpose of the current study was to investigate the association between preschool children's regulation (regulatory and control components) and competitive behaviors (task-oriented and other-referenced). A total of 260 preschool children (47.7% girls) ranging in age from 49…

Children often substitute one object for another during play. They may substitute a stick for a sword or a box for a car, often favouring substitutes that are shaped like the needed object. The current study looked at the roles of shape and specificity, the degree to which a possible substitute resembles something else, in children's object…

Children exhibit a self-relevance effect whereby they share more candies with close friends and acquaintances than with strangers. The present study aimed to reduce the negative consequences of self-relevance effects by enhancing the behavioural control of sharing behaviour. This study initiated two behavioural control levels to investigate…

Bjorklund and Kipp (1996) hypothesized that due to selection processes operative during human evolution, females have an inborn advantage over males in the ability to suppress inappropriate responses on tasks in the behavioral and social domains. To test this hypothesis, a meta-analysis was conducted on gender differences on simple delay tasks in…

Our primary objective was to examine the extent to which moment-to-moment associations between preschool-aged children's behavior and maternal emotional support differed for mothers showing different levels of parasympathetic engagement. We used behavioral observations of maternal and child behavior and maternal changes in cardiac vagal tone…

Previous research on 4-6-year-olds' interpretations of adjunct control has observed non-adult-like behavior for sentences like "John called Mary before running to the store." Several studies have aimed to identify a grammatical source of children's errors. This study tests the predictions of grammatical and extragrammatical accounts by…

Understanding executive functions (EFs) development is of high value to global developmental science. Recent calls for a more inclusive and equitable developmental science argue that tasks and questionnaires that are developed using only a subset of the population are not likely to be appropriate for EFs measurement in global contexts unless…

Spatial play in early childhood is associated with a variety of spatial and cognitive skills. However, these associations are often derived from studies in which different tasks are used across different age ranges, leaving open the question of how children's natural behaviors during spatial play develop from infancy into the early preschool…