A book describing children's utterances in terms of similarities to and deviations from the "well-formed structures of the adult model is reviewed. (DB)

Concerns the language development of four children between the ages of 19 and 26 months, as they progressed from single-word utterances to a mean length of utterance of 2.5 morphemes. The observed developmental sequence is described and possible linguistic and cognitive explanations for it are discussed.

The acquisition of "to" in infinitive complement structure was examined in the spontaneous speech data from four children who were observed longitudinally from two to three years of age. Results support the conclusion that the verb system is a determining factor in the acquisition of linguistic structure. (SED)

This study of early word learning focused on the status of object words in early vocabularies. Fourteen children were followed from nine months to two years of age, and monthly vocabulary growth was analyzed. Results indicated that object words represented approximately one-third, on average, of the different words the children learned. (TJQ)

Reports a study of two- and three-year-olds' acquisition of complex sentences with perception and epistemic verbs that took a second verb in their complements. Complement types, complementizer connectives, and the discourse contexts in which complementation occurred were specific to individual matrix verbs. (Author/CB)

Re-analysis of data regarding children's acquisition of tense and aspect indicated that children learning Polish were influenced by aspect in acquiring verb tense in the same way as children were influenced in learning other languages. Children beginning to learn verb inflections found aspectual contour particularly compelling in leading them to…

Describes the longitudinal emergence of verb inflections as observed in the speech of four American English-speaking children emphasizing occurrence of inflections, their linguistic/non-linguistic contexts, and their conditional use. Discusses results in terms of sentence relations between verbs and other constituents and the semantics of verb…

A group of studies on child language development between ages 2 and 3 is presented. The studies, originally published between 1970 and 1989, are the result of a longitudinal research program. An introductory section describes the contents, offers background information on several different perspectives (developmental, learnability, cross-cultural)…

This book provides a synthesis of research findings in normal language development as well as a practical approach to the evaluation and treatment of children with language disorders. Its 21 chapters are divided into six topical sections: language description, normal language development, deviant language development, goals of language learning…

A study tested the hypothesis that if, for the 2-year-old, the transitive/intransitive distinction functions to signal differences in the conceptualization of actions, the child's sentence production should show a relationship between sentence frame and (1) locus of change animacy and (2) the child's expectations concerning an action's outcome.…

Examined 2-year-olds' language acquisition with an emphasis on the agency and intentionality of the child. Concluded that development depends on the child's expression of intentionality by actions (performance), the essential tension between the child's engagement and effort, and the integration of linguistic, cognitive, and social aspects of the…

This paper proposes a broad outline of a variable model of language development and explores several particulars of such a model in the language behavior of four two-year-old children. The process by which information about language is progressively transformed and integrated rather than merely being added together can be seen in the shifting…