Spontaneous imaginary companion (SIC) creation in childhood is a typical imaginative play behaviour associated with advanced sociocognitive skills; however, the direction of causality has not been established. To investigate this experimentally, researchers must determine whether children can create, on request, qualitatively equivalent imaginary…

Play is an essential component of childhood, but parents and educators sometimes view it as an optional add-on, which gets in the way of learning. This view persists in spite of evidence that play is helpful and sometimes critical to learning in multiple domains, perhaps because precise mechanisms whereby play occasions learning are not well…

References to internal states (e.g., thoughts, feelings, and desires) indicate children's appreciation of people's inner worlds. Many children spend time playing video games; however, the nature of children's speech when doing so has received little attention. We investigated the use of internal state language (ISL) as 251 seven-year-olds played…

Executive functions (EF) have been identified as important predictors of children's proximal and distal development. Recent research highlights pretend play as a potential mechanism for EF development, and there has been a call to identify for whom pretense in most beneficial. The current study investigated whether an association found between…

During the COVID-19 pandemic, kindergartens in Hong Kong have sought ways in which to support children's learning at home while schools were closed. We report on a proof-of-concept study: short videos intended to support playful learning at home were distributed to parents/caregivers of preschool children via a smartphone app; toys and a storybook…

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…

There has long been a hypothesized link between pretend play and self-regulation in childhood, and several recent studies have confirmed a positive relation between the two in children as young as preschool-age. However, no research to date has investigated whether this relation is present in toddlerhood. The purpose of the present study is to…

Preterm birth is associated with reduced social attention in infancy. Are these early social attention differences linked to later interactive ability? This study draws on a well-characterized preterm cohort in whom we have previously demonstrated a reduced attentional preference for social information in infancy, using eye-tracking. States of…

Most research on children's play takes a context-dependent, adult-focused observational approach to the measurement of play. The current two studies present the development and psychometric properties of the Child Self-Report Playfulness (CSRP) scale, which was presented via "puppet-show" to two samples of children. Study 1, across 98…

Children's mathematical knowledge at school entry varies considerably and predicts long-term achievement outcomes. Differences in children's exposure to math and number talk at home may help to explain variations in school-entry math ability. However, nearly all research on exposure to math and number talk has been conducted with parents and…

Object word learning can be based on infant-related factors such as their manual actions and socio-linguistic factors such as parental input. Specific input for spatial features (i.e., size, shape, features of objects) can be related to object word comprehension in early vocabulary development. In a longitudinal study, we investigated whether fine…

This study examined the associations between maternal scaffolding and toddlers' active joint engagement during play and whether toddlers' temperamental activity moderates those associations. Korean mother-toddler dyads (N = 106) participated in semistructured free play. Maternal scaffolding, toddlers' joint engagement, and physical activity level…

Siblings' imitative behaviors were investigated in 39 middle-class dyads during six 90-min home sessions at both Time 1 (M age: older sibling = 4.4 years; younger sibling = 2.4 years) and Time 2 (2 years later). Although younger siblings imitated most often at T1 and T2, older siblings' imitation increased proportionally over time in comparison to…

Background: Contextual factors are likely to influence whether young children are able to adhere to recommended health behaviours. This study aimed to: (1) describe the social and environmental characteristics of children under five living in Soweto, South Africa; and (2) determine factors associated with screen time and outdoor play in this…

Despite the increase in the use of interactive technological devices, little is known about the impact that play context has on the production of spatial language by parents. To investigate whether there is differential parental spatial input afforded by play contexts with their preschoolers, 34 children (20 girls, 14 boys) and their primary…