This groundbreaking book looks at the development of mathematical thinking in infants and toddlers, with an emphasis on the earliest stage, from zero to three, when mathematical thinking and problem solving first emerge as natural instincts. The text explores the four precursor math concepts--attribute, comparison, change, and pattern--with an…

There has been limited research on interventions with young children encompassing "interoceptive awareness," the awareness and perception of sensations from inside the body. The information in this phenomenological study examines how participants experienced a bidirectional, reflective, online intervention program on interoceptive…

Research Findings: Multiple factors likely influence the language development of young children growing up in low-income homes, potentially including stressors experienced by parents. Here, we ask: (1) What is the association between stress (i.e., economic hardship and parenting stress) and toddlers' language development? and (2) Does number of…

This paper examines the acquisition of demonstratives (e.g., "that," "there") from a cross-linguistic perspective. Although demonstratives are often said to play a crucial role in L1 acquisition, there is little systematic research on this topic. Using extensive corpus data of spontaneous child speech, the paper investigates…

Background: Feeding methods used during infancy may impact upon eating behaviors in toddlers and influence the likelihood of developing weight issues. The aim of this study was to compare eating behaviors and food neophobia (defined as the reluctance to eat, or the avoidance of, new foods) in toddlers between three different complementary feeding…

Babies think differently than adults, and understanding how they think can help us see their explosive brain growth in everyday behavior. Infants learn language faster than adults do, use statistics to understand how the world works, and even reason about the minds of others. But these achievements can be hidden by their poor self-regulatory…

In languages with evidential marking, utterances consist of an informational content and a specification of the mode of access to that information. In this first longitudinal study investigating the acquisition of the Turkish evidential marker "-mIs" in naturalistic child-caregiver interactions, we examined six children between 8 and 36…

Purpose: Studies of infants' early vocalizations have proven helpful in describing the developmental characteristics of various communication disorders. However, few studies have addressed the early vocalizations of infants and toddlers who were later diagnosed, as older children, with childhood apraxia of speech (CAS). We refer to these infants…

This article is adapted from "Screen Sense: What the Research Says About the Impact of Media on Children Under 3 Years Old" (Barr, McClure, & Parlakian, 2018) and related resources, published online at zerotothree.org/screensense. The authors focus on two growing areas of research: how media use influences parent-child relationships…

Purpose: The purpose of this study was to investigate the time course of vocal development in infants and toddlers with bilateral cochlear implants (CIs; bilateral CI group) who are acquiring Finnish and to compare their progress to that of infants with normal hearing and typical development (TD group). Method: Five thousand nine hundred…

Introduction: This paper provides a report of social validity and its usefulness in understanding study effects. Social validity data were drawn from a larger single-case study designed to investigate the effectiveness of the Matrix Approach in the practice of early intervention visual impairment professionals. Methods: Qualitative measures were…

In this study, we investigate the association between family environment and early childhood development among children aged 6-24 months in rural counties in China. To do this, we used cross-sectional data from a large scale survey, including 1809 child-caregiver dyads across 22 nationally designated poverty counties. We found that 53.95% of…

Early Head Start is a comprehensive, two-generation federal initiative for low-income pregnant women and families who have infants and toddlers ages 3 or younger. The Head Start Program Performance Standards (HSPPS) require center-based and family child care Early Head Start programs to "provide responsive care, effective teaching, and an…

The Child Care and Early Education Research Connections collection catalogs resources that researchers, policymakers, and other professionals find and use for child care and early education research. The items outlined in this resource list examine equity in early care and education (ECE). They were published between 2016 and 2022 in the United…

Successful word recognition requires that listeners attend to differences that are phonemic in the language while also remaining flexible to the variation introduced by different voices and accents. Previous work has demonstrated that American-English-learning 19-month-olds are able to balance these demands: although one-off one-feature…