Many English-speaking children use plural nominal forms in spontaneous speech before the age of two, and display some understanding of plural inflection in production tasks. However, results from an intermodal preferential study suggested a lack of "comprehension" of nominal plural morphology at 24 months of age (Kouider, Halberda, Wood,…

The research presented here uses theoretical constructs of formal syntax to account for performance data in agreement production. The phenomenon examined is object interference in French, i.e., incorrect agreement of the verb with the object. In the first experiment, interference is shown to occur in object relative clauses despite the absence of…

We show that 4-year-olds assign the correct interpretation to antecedent-contained deletion (ACD) sentences because they have the correct representation of these structures. This representation involves Quantifier Raising (QR) of a Quantificational Noun Phrase (QNP) that must move out of the site of the verb phrase in which it is contained to…

One of the tasks of language learning is the discovery of the intricate division of labour between the lexical-semantic content of an expression and the pragmatic inferences the expression can be used to convey. Here we investigate experimentally the development of the semantics-pragmatics interface, focusing on Greek-speaking five-year-olds'…

Based in part on an Indiana University doctoral dissertation; segments presented to the Midwestern Psychological Association, Cincinnati, Ohio, 1970. Research supported by a National Science Foundation Graduate Traineeship, a Public Health Service Predoctoral Research Fellowship to the author, and a Public Health Service Research Grant to Richard…

Two experiments investigated the factors that govern children's use of singular and plural forms of count nouns. Experiment 1 used an elicited production task to investigate whether children use referential and/or syntactic information to determine the form of the count nouns when the two sources of information conflict (e.g. "each x, one of the…

Research supported in part by a Public Health Service grant from the National Institute of Child Health and Development. (VM)

Preliminary version of this article presented at the meetings of the Society for Research in Child Development, Minneapolis, Minnesota, April 1971. Research and preparation of the paper supported in part by an Intramural Grant from the Regents of the University of California to T. Kenney. (VM)

Research supported in part by a National Science Foundation Grant. (VM)

Overgeneralization occurs when a child uses the wrong word to name an object and is often observed in the early stages of word learning. We develop a method to elicit overgeneralizations in the laboratory by priming children to say the names of objects perceptually similar to known and unknown target objects. Experiment 1 examined 18 two-year-old…

Revised version of an article which appeared in the June 71 Bulletin" of the Centre de Recherche de l'Education Specialisee et de l'Adaptation Scolaire. (VM)

Thirty-six three- to four-year-old children were tested to assess whether hearing a word-referent link from an ignorant speaker affected children's abilities to subsequently link the same word with an alternative referent offered by another speaker. In the principal experimental conditions, children first heard either an ignorant or a…

We hypothesize that the conceptual relation between a verb and its direct object can make a sentence easier ("the cat is eating some food") or harder ("the cat is eating a sock") to parse and understand. If children's limited performance systems contribute to the ungrammatical brevity of their speech, they should perform better on sentences that…

Phonological awareness is thought to become increasingly analytic during early childhood. This study examines whether the proposed developmental sequence (syllable[right arrow]onset-rime[right arrow]phoneme) varies according to the characteristics of a child's native language. Experiment 1 compares the phonological segmentation skills of English…