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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
Tamis-LeMonda, Catherine S.; Bornstein, Marc H. – 1991
Stability and predictive validity in the language and play development of 41 toddlers were studied. Links between language and symbolic play of toddlers were examined at 13 and 20 months in terms of homotypic, heterotypic, or mediated models of association. In the homotypic model, performance on a variable is related to performance on the same…
Descriptors: Comparative Analysis, Individual Development, Language Acquisition, Longitudinal Studies