Defining developmental progressions can be an important step in identifying developmental precursors and mechanisms of change, within and across areas of reasoning. In one exploratory study, we examine whether the development of children's thinking about ownership follows a systematic progression wherein some components emerge reliably before…

Pretend play is important for children's development. However, recent research indicates that, as preschool children age and get more proficient at pretend play, they prefer real objects. We examined whether toddlers prefer real objects when they are younger as well as when they are older and more proficient in pretend play situations. Forty-three…

Young children from a very early age not only prefer those who help others but also those who engage in altruistic helping. This study aims to test how children assess helping when the goal of the helping behavior is immoral. We argue that younger children consider only the helping versus hindering behavior, but older children distinguish their…

Emotion understanding develops rapidly in early childhood. Firstborn children (N = 231, 55% girls/45% boys, 86% White, 5% Black, 3% Asian, 4% Latinx, Mage = 29.92 months) were recruited into a longitudinal study from 2004 to 2008 in the United States and administered a series of tasks assessing eight components of young children's emotion…

Purpose: This study examines the influence of lexical and phonological factors on expressive lexicon size in 40 French-speaking children tested longitudinally from 22 to 48 months. The factors include those based on the lexical and phonological properties of words in the children's lexicons (phonetic complexity, word length, neighborhood density…

The American Academy of Pediatrics recommends autism spectrum disorder screening at the 18- and 24-month well-child visits. However, despite widespread toddler screening, many children are not diagnosed until school age, and delayed diagnosis is more common among low-income and minority children. Offering autism spectrum disorder screening at…

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…

Over the past three decades, our understanding of science learning in early childhood has improved exponentially and today we have a strong empirically based understanding of science experiences for children aged three to six years. However, our understanding of science learning as it occurs for children from birth to three years, is limited. We…

Brief, clinically feasible instruments are needed to assess autism spectrum disorder (ASD) in toddlers and preschoolers so that children can access early evidence-based intervention. Study purposes were to (1) compare scores on the 30-item Checklist for Autism Spectrum Disorder (CASD) and 6-item CASD-Short Form (CASD-SF) for toddlers and…

Data from elicited language tasks can add to the literature on the development of the complex syntax structures of embedded complement clauses in typically developing children. In the current study, preschool-age children (n = 27) participated in two elicited language tasks focusing on three types of embedded complement clauses: infinitival…

This experiment tests the age at which left-to-right spatial associations found in infancy shift to culture-specific spatial biases in later childhood, for both numerical and non-numerical information. Children ages 1-5 years (N = 320) were tested within an eye-tracking paradigm which required passive viewing of a video portraying a spatial…

Most children learn a language such as Mandarin Chinese that uses lexical tone to communicate meaning. This study aimed to examine the phonological specificity of tone representations in monolingual and bilingual learners of Mandarin. Two age-groups were tested: toddlers (2.5 to 3.5 years) and preschoolers (4 to 5 years; N = 80). Using a…

This study examined the links between mothers' and fathers' emotion socialization practices and social behaviour between siblings. We utilized parent reports from 57 two-parent families with preschool- and toddler-aged siblings to assess parental responses to children's negative emotions, as well as siblings' engagement in positive involvement,…

This Migrant and Seasonal Head Start (MSHS) Services Snapshot summarizes key data on demographics and services for children from birth to age five and pregnant women served by all Migrant and Seasonal Head Start programs. The data in this Snapshot is a subset of the annual Program Information Report (PIR) submission to the Office of Head Start.…

The early childhood education care (ECEC) practitioner landscape is complex and encompasses many roles including center-based and school-based administrative, teaching, and support staff as well as home-based unregulated child care family child care (FCC) providers and home-based regulated (e.g., registered or licensed) FCC providers who…