Research Interests
My research aims to provide more precise, longitudinal characterizations of early grammatical development for young children with developmental language disorder (DLD), to improve the identification of toddlers at-risk for DLD, and to develop effective, evidenced-based early language interventions. This work has been funded by the National Institute on Deafness and Other Communication Disorders, the National Institute of Child Health and Human Development, the National Science Foundation, and the Institute of Educational Sciences. I am also deeply committed to translational research and aligning research efforts with the needs of clinical practitioners.
Additional Campus Affiliations
Charles and Kay Stenberg Professor, Speech and Hearing Science
Professor, Speech and Hearing Science
Professor, Linguistics
Affiliate, Center for Social & Behavioral Science
External Links
Recent Publications
Hadley, P. A., Harrington, E. K., Krok, W. C., Prezaa, T., Harriott, E. M., Manning, B. L., Wakschlag, L. S., & Nortonb, E. S. (2025). Evaluating the Construct Validity of Sentence-Focused Diversity Measures With Late-Talking Toddlers and Same-Age Peers. Journal of Speech, Language, and Hearing Research, 68(4), 1886-1901. https://doi.org/10.1044/2024_JSLHR-24-00558
Harrington, E. K., Hadley, P. A., & Rispoli, M. (2025). Spontaneous Lexical Overlap in Early Conversations: Automated Sequential Coding of Parents and Toddlers. Journal of Child Language. Advance online publication. https://doi.org/10.1017/S0305000925100184
Harrington, E. K., & Hadley, P. A. (2024). A Brief Intervention to Teach Parents Naturalistic Language Facilitation Strategies. American journal of speech-language pathology, 33(2), 990-1003. https://doi.org/10.1044/2023_AJSLP-23-00146
Preza, T., & Hadley, P. A. (2024). Parent Responsivity, Language Input, and the Development of Simple Sentences. Journal of Child Language, 51(1), 91-117. https://doi.org/10.1017/S0305000922000459
Woodbury, M. L., Cintora, P., Ng, S., Hadley, P. A., & Schantz, S. L. (2024). Examining the relationship of acetaminophen use during pregnancy with early language development in children. Pediatric Research, 95(7), 1883-1896. https://doi.org/10.1038/s41390-023-02924-4