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Young Children’s Language Development

Young children’s language development begins at birth and forms the foundation for school readiness and long-term achievement. Research shows that early, responsive interactions shape children’s brain development and predict later success in reading, math, executive functioning, and social-emotional development, yet caregivers may lack the resources to consistently support these interactions. We invest in research that studies how to strengthen early language environments to support the quality and quantity of caregiver-child interactions so that more children enter school with the foundational skills they need to thrive.

Completed

Dual-MEG Interbrain Synchronization During Turn-Taking Verbal Interactions Between Mothers and Children

This is a correlational study of brain activity of 23 mother-child pairs as measured by dual MEG (magnetoencephalography) machines during various verbal interactions.

Completed

LENA Grow’s Impact on Children’s Kindergarten Readiness

This white paper summarizes evidence from three quasi-experimental studies of LENA Grow, a professional development program for early educators designed to increase the number of interactions between teachers and children, in three different school districts.

Completed

Heart-To-Heart: Infant Heart Rate at 3 Months Is Linked To Infant-Directed Speech, Mother–Infant Interaction, and Later Language Outcomes

Using a sample of 31 three-month-olds, the research team assessed infant heart rate during mother-infant face-to-face interaction in a laboratory setting.

Completed

Infants’ Brain Responses to Social Interaction Predict Future Language Growth

The research team used infant magnetoencephalography (MEG) technology to measure five-month-old infants’ neural responses during live verbal face-to-face interactions with adults (treatment).

Completed

Mother-Infant Social and Language Interactions at Three Months Are Associated With Infants’ Productive Language Development in the Third Year of Life

This is a descriptive study examining associations between adult-child social interactions in the first three months of life—specifically maternal sensitivity, infant-directed speech (IDS), and conversational turn-taking (CT)—and children’s later language development.

Completed

Measuring LENA Grow’s Impact on Kindergarten Readiness

This study examined the impact of LENA Grow on young children’s school readiness outcomes in three school districts in South Carolina, Kentucky, and Tennessee.

Completed

Language Experience During Infancy Predicts White Matter Myelination at Age Two

This is a correlational study of parent and child language skills and youth brain development in early childhood for 22 parent-child pairs, as measured by home recordings of parent-child verbal interactions and estimates of white matter myelination as derived from quantitative MRI when the children were two years old.

Completed

The Effect of Exposure to Reach Out and Read on Shared Reading Behaviors

This is a correlational study that aims to leverage existing survey data from parents of children ages six months to five years old who had brought their child to a well visit at one of 427 pediatric clinics in North and South Carolina.

Completed

The Impact of a Language-Based Intervention, a Two-Part Study

This is a small randomized controlled trial of LENA Grow, a language-based coaching program for early childhood teachers designed to improve communication skills.

Completed

Language Input in Late Infancy Scaffolds Emergent Literacy Skills and Predicts Reading-Related White Matter Development

This is a correlational study of parent and child language- and reading-related skills in early childhood for 53 parent-child pairs, as measured by the Language ENvironment Analysis System (LENA) and other measures of language development.

Completed

The Relationship Between Conversational Turns and Student Achievement

This is a secondary correlational analysis of data derived from a randomized controlled trial of a 13-week parenting course that was designed to encourage verbal interactions between parents and their young children, with the goal of improving kindergarten readiness.

In Progress

Evaluating the Impact of Reach Out and Read on Caregiver-Clinician Relationships and Pediatric Care Satisfaction

This study evaluates the impact of Reach Out and Read on caregiver-clinician relationships and parent satisfaction with pediatric care, and explores effects on well-child visit attendance and vaccine adherence.

Open Research Questions

We plan to fund work on this topic in 2026 and will share links to studies aligned with this question once grants have been approved.

Explore our other research areas

Chronic Absenteeism

Family Engagement

Joyful & Rigorous STEM

K-12 EdTech

K-12 High-Quality Instructional Materials

Maternal and Child Health & Well-Being

Out-of-School Programming

Pre-K Curriculum

Professional Learning

Strategic Staffing

Tutoring

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Young boy sits in desk at school

Courtesy of TalkingPoints

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