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Leveraging Extant Data to Characterize Language Growth and Optimize Caregiver-Implemented Interventions for Children with Late Language Emergence

Award Number: R21DC023848
ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 08/10/2026
PERIOD OF PERFORMANCE END DATE: 07/31/2028

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Leveraging Extant Data to Characterize Language Growth and Optimize Caregiver-Implemented Interventions for Children with Late Language Emergence - Project Summary Late language emergence (LLE) is a delay in spoken language during toddlerhood that can have wide- reaching developmental consequences. Despite evidence that early intervention (EI) can improve outcomes, children with LLE remain drastically underserved in the United States. Brief, targeted caregiver-implemented interventions are needed to serve this high-incidence population, but evidence is limited on specific caregiver intervention strategies that support child outcomes in distinct periods of development. This project will leverage extant data from 98 caregiver–child dyads enrolled in the Maximizing Outcomes for Preschoolers with Developmental Language Disorder randomized controlled trial (RCT) to (1) characterize developmental trajectories of precise child language measures from 30 to 45 months and (2) determine whether specific caregiver strategies, child uptake of strategies, and participant-level factors contribute to growth in children’s vocabulary from 30 to 39 months and sentences from 36 to 45 months. Research activities include secondary coding of video data to score the Parenting Interactions with Children Checklist of Observations Linked to Outcomes (PICCOLO) and automated coding of transcript data using Computerized Language Analysis (CLAN) to compute specific caregiver strategies and child uptake of these strategies. Analyses will compare the effects a broad package of facilitative caregiver behaviors (i.e., PICCOLO) have on children’s growth relative to a small set of developmentally timed strategies and test whether a novel measure, children’s real- time uptake of strategies, further contributes to growth. Expected outcomes will advance understanding of vocabulary and sentence growth in children with LLE, clarify which intervention components are most effective in different developmental periods, and reveal potential mechanisms of caregiver-implemented interventions. In doing so, this work will establish an empirical foundation to optimize and evaluate brief, targeted, and developmentally aligned interventions that can reach more children with LLE and their families.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $426,559 )
2026	2026	UNIVERSITY OF ILLINOIS	506 S WRIGHT ST	URBANA	IL	61801	CHAMPAIGN	USA	Research Related to Deafness and Communication Disorders	001	1	8/13/2026	NEW	$0
2026	2026	UNIVERSITY OF ILLINOIS	506 S WRIGHT ST	URBANA	IL	61801	CHAMPAIGN	USA	Research Related to Deafness and Communication Disorders	000	1	8/11/2026	NEW	$426,559
														Subtotal = $426,559

Grand Total All Awards = $426,559

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Leveraging Extant Data to Characterize Language Growth and Optimize Caregiver-Implemented Interventions for Children with Late Language Emergence

Award Number: R21DC023848

ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 08/10/2026

PERIOD OF PERFORMANCE END DATE: 07/31/2028

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