There has been relatively little discussion in the field of child language acquisition about how best to sample from children's spontaneous speech, particularly with regard to quantitative issues. Here we provide quantitative information designed to help researchers make decisions about how best to sample children's speech for particular research…

The purpose of this research was to show how the syntactic and semantic components of the tense-aspect system interact during the acquisition process. Our methodology involved: (1) identifying predicates, (2) finding the initial occurrence of their tense-aspect morphology, and (3) observing the emergence of contrasts. Six children learning Polish…

Multivariate genetic analysis was used to examine the genetic and environmental aetiology of the interrelationships of diverse linguistic skills. This study used data from a large sample of 4 1/2-year-old twins who were tested on measures assessing articulation, phonology, grammar, vocabulary, and verbal memory. Phenotypic analysis suggested two…

This study investigated different accounts of children's acquisition of non-subject wh-questions. Questions using each of 4 wh-words ("what," "who," "how" and "why"), and 3 auxiliaries (BE, DO and CAN) in 3sg and 3pl form were elicited from 28 children aged 3;6-4;6. Rates of non-inversion error ("Who…

Describes a study that examines the effect of an adult-child discourse structure on the word combination produced by 17 children at the single-word utterance level. There was a significant difference between pretest and posttest multiword production for the experimental group of six children, but no difference for the control group. (SED)

Describes a study of 40 monolingual Spanish-speaking Peruvian children in which comprehension of six locative phrases was tested. Results are analyzed in terms of developmental sequence, locative acquisition, the effects of intrinsic label on projective locative comprehension, the effects of linguistic form, and the effects of context. (SED)

Describes a study which examined the relationship between mother's speech and the rate of child syntax growth for 22 two-and-a-half-year-old children. Results suggest that linguistic experience does contribute to syntax development but that the relation between linguistic input and language growth is different for different domains of language and…

Describes a study designed to compare color-name with shape-name learning by three-year-old children in an experimentally controlled format. Results show that children learned color-label associates significantly more slowly than matched shape-label associates, and they committed more errors with colors than with shapes during learning. Provides a…

A cross-sectional and a longitudinal study of two-year-old children was performed to investigate the developmental relationship between understanding differences in spatial point of view and correct comprehension and production of I/you pronouns. Results suggest that understanding spatial points of view is a cognitive prerequisite to understanding…

Discusses results of study that attempted to determine whether subject-auxiliary inversion occurs in yes-no questions before wh-questions and whether noninversion errors are characteristic feature of acquisition of wh-questions. Findings do not support previous claims that inversion is acquired in yes-no questions before wh-questions. Rather,…

Examines the development of children's knowledge about the presuppositions of cognitive verbs that take sentential complements. Results indicate that the presuppositions of the factives "know,""forget," and "remember" and the nonfactive "think" are not learned until age four. "Believe," which has factive and nonfactive properties, is mastered…

A study investigating mothers' ideas of appropriate speech to children aged 1;6-3;6 looked at the explicitness of action directives given. Results support several theories and the notion that differences in mothers' language use reflect their ideas of what the child can understand. (MSE)

When asked to identify "chairs" from a series of pictures and order them as best examples, adults used contextual clues about the objects' function in their judgments. However, contextual function clues caused children's judgment to change greatly. Results are discussed in relation to theories of concept formation in children. (MSE)

Discusses the variation and stability of mother speech patterns across individuals. Analyzes the functionally coded speech of 11 mothers and provides a typology of mother styles, based on the intentions of mothers to direct or converse with their children. (EKN)

Two investigations, one longitudinal/cross-sectional and naturalistic, and the other quasi-experimental, demonstrated that preschool-age children have the capacity for hypothetical reference but that this capacity operates within certain constraints. (Author/AM)