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Hadley, Pamela A.; Rispoli, Matthew; Hsu, Ning – Language, Speech, and Hearing Services in Schools, 2016
Purpose: 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.,…
Descriptors: Toddlers, Verbs, Vocabulary, Grammar
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Hadley, Pamela A.; Rispoli, Matthew; Holt, Janet K.; Fitzgerald, Colleen; Bahnsen, Alison – Journal of Speech, Language, and Hearing Research, 2014
Purpose: The authors of this study investigated the validity of tense and agreement productivity (TAP) scoring in diverse sentence frames obtained during conversational language sampling as an alternative measure of finiteness for use with young children. Method: Longitudinal language samples were used to model TAP growth from 21 to 30 months of…
Descriptors: Morphemes, Grammar, Sentences, Longitudinal Studies