@inbook{ca3cca5b42ef4cba9947faa6422a15a0,
title = "Toward a theory of gradual morphosyntactic learning",
abstract = "This chapter summarizes multiple studies from a longitudinal database of 20 children from 21 to 33 months of age. First, we describe the growth of tense/agreement morpheme productivity, revealing an age-related starting point and stable individual growth trajectories. Next, we provide evidence for a developmental sequence characterized by -3s, -ed and auxiliary DO as a block of morphemes that develop together. Evidence for cross-morpheme facilitation is also presented. Finally, we document children's sensitivity to tense marking in parent input at 21 months of age, with input informativeness accounting for a significant portion of variation in between-child growth rates. We conclude that the acquisition of the tense/agreement system is the product of gradual morphosyntactic learning and that children have an abstract tense/agreement system before age three. ",
keywords = "Tense/agreement, morphosyntactic learning, morphosyntax",
author = "Matthew Rispoli and Pamela Hadley",
year = "2011",
doi = "10.1075/tilar.7.02ris",
language = "English (US)",
isbn = "9789027234773 ",
series = "Trends in Language Acquisition Research",
publisher = "John Benjamins Publishing Company",
pages = "13--34",
editor = "Inbal Arnon and Clark, {Eve V}",
booktitle = "Experience, Variation and Generalization",
address = "Netherlands",
}