This article presents the authors' comments on Nina Hyams' article, "The Acquisition of Inflection: A Parameter Setting Approach" (AIPSA). The article began as a 1986 presentation at the Boston University Conference on Language Development (BUCLD). Parts of it were also presented at the 4th Eastern States Conference on Linguistics (ESCOL) in 1987…

First written in 1986, prior to the many findings concerning the optionality of finiteness and the root infinitive phenomenon, this article attempts to extend the parameter-setting model of grammatical development to the acquisition of inflectional morphology. I propose that the Stem Parameter, which states that a stem is/is not a well-formed word…

This article argues for a theory of lexical acquisition that takes overgeneralization in monolinguals and syntactic transfer effects in bilinguals to be manifestations of the same underlying mechanism. The theory views both overgeneralization and transfer as epiphenomena of an updating system which spreads newly acquired information across…

It has been known for several decades that young children have difficulties with universal sentences. In this article, I present an analysis of the main errors that have been reported in the literature. My proposal is based on an old idea, namely, that children's errors are caused by a noncanonical mapping from syntactic form to semantic…