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Toddlers’ Verb Lexicon Diversity and Grammatical Outcomes, Brooklyn LettersPurpose The goals of this study were to quantify longitudinal expectations for verb lexicon growth and to determine whether verb lexicon measures were better predictors of later grammatical outcomes than noun lexicon measures.Method Longitudinal parent-report measures from the MacArthur-Bates Communicative Development Inventory (Fenson et al., 2007) from ages 21 to 30 months from an archival database were used to model growth in common noun and verb lexicon size for 45 typically developing toddlers. Communicative Development Inventory growth coefficients and 24-month measures of lexical diversity from spontaneous language samples were used to predict 30-month grammatical outcomes on the Index of Productive Syntax (Scarborough, 1990).

Results Average verb growth was characterized by 50.57 verbs at 24 months, with linear growth of 8.29 verbs per month and deceleration overall. Children with small verb lexicons or slow linear growth at 24 months accelerated during this developmental period. Verb lexicon measures were better predictors of grammatical outcomes than noun lexicon measures, accounting for 47.8% of the variance in Index of Productive Syntax scores. Lexical verb diversity in spontaneous speech emerged as the single best predictor.

Conclusion Measures of verb lexicon size and diversity should be included as part of early language assessment to guide clinical decision making with young children at risk for language impairment.

Acknowledgments
Data collection for the archival database used in this study was supported by National Science Foundation grant BCS-08-22513 awarded to Matthew Rispoli. Portions of this article were previously presented at the 2013 Symposium for Research in Child Language Disorders, Madison, Wisconsin. We extend sincere appreciation to the parents and children who made the work possible and to Paula Acu a and Megan McKenna for their contributions to the data analysis.
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Toddlers’ Verb Lexicon Diversity and Grammatical Outcomes, Brooklyn Letters
Craig Selinger is the dedicated owner of Brooklyn Letters, a reputable private practice renowned for its exceptional services. Together with his team of skilled professionals, they extend their expertise across a wide range of locations, including Manhattan, Brooklyn, Queens, Staten Island, Bronx, Westchester, Long Island, New Jersey, and Connecticut. With a New York State license as a speech-language therapist (pathologist) and a learning specialist, Craig boasts an impressive track record spanning over two decades, during which he and his team have helped more than a thousand families, establishing Brooklyn Letters as a respected practice in the field. Craig's proficiency encompasses a diverse array of domains, including addressing early childhood speech-language delays, skillfully managing expressive and receptive language disorders, and adeptly tackling language learning obstacles such as reading, writing, executive functioning, social and pragmatic communication. He also demonstrates mastery in speech production concerns, i.e., articulation and enunciation. What sets Craig and his team apart is their dedication to providing comprehensive care. They actively collaborate with the finest professionals in the NYC metro area, including neuropsychologists, mental health therapists, and allied health professionals. This network of expertise ensures a holistic approach to each client's unique needs.
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The following two tabs change content below.
Toddlers’ Verb Lexicon Diversity and Grammatical Outcomes, Brooklyn Letters
Craig Selinger is the dedicated owner of Brooklyn Letters, a reputable private practice renowned for its exceptional services. Together with his team of skilled professionals, they extend their expertise across a wide range of locations, including Manhattan, Brooklyn, Queens, Staten Island, Bronx, Westchester, Long Island, New Jersey, and Connecticut. With a New York State license as a speech-language therapist (pathologist) and a learning specialist, Craig boasts an impressive track record spanning over two decades, during which he and his team have helped more than a thousand families, establishing Brooklyn Letters as a respected practice in the field. Craig's proficiency encompasses a diverse array of domains, including addressing early childhood speech-language delays, skillfully managing expressive and receptive language disorders, and adeptly tackling language learning obstacles such as reading, writing, executive functioning, social and pragmatic communication. He also demonstrates mastery in speech production concerns, i.e., articulation and enunciation. What sets Craig and his team apart is their dedication to providing comprehensive care. They actively collaborate with the finest professionals in the NYC metro area, including neuropsychologists, mental health therapists, and allied health professionals. This network of expertise ensures a holistic approach to each client's unique needs.
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