The first stage of combinatorial speech is better described as variable than uniform. Talk of variants obscures two different aspects of language (knowledge and use) and two different aspects of language development -- acquisition of the grammar (competence) and deployment of the grammar in speaking and listening (performance). Null subjects and…

Across a diverse range of languages, children proceed through similar stages in their production of causal language: their initial verbs lack internal causal structure, followed by a period during which they produce causative overgeneralizations, indicating knowledge of a productive causative rule. We asked in this study whether a child not…

Faroese is at the tail end of a change from an Icelandic-type syntax in which V-to-T is obligatory to a Danish-type system in which this movement is impossible. While the older word order is very rarely produced by adult Faroese speakers, there is evidence that this order is still marginally present in the adult grammar and thus only dispreferred,…

In addition to serving as question markers with interrogative force, "wh"-words such as "shenme" "what" in Mandarin Chinese have a noninterrogative meaning. For the noninterrogative meaning, these words have been typically analyzed as negative polarity items, i.e., as "wh"-pronouns that are similar in…

We report a syntactic priming experiment that examined whether children's acquisition of the passive is a staged process, with acquisition of constituent structure preceding acquisition of thematic role mappings. Six-year-olds and nine-year-olds described transitive actions after hearing active and passive prime descriptions involving the same or…

Experimental studies demonstrate that contrast helps toddlers to extend the meanings of novel adjectives. This study explores whether antonym co-occurrence in spontaneous speech also has an effect on adjective use by the child. The authors studied adjective production in longitudinal speech samples from 16 children (16-36 months) acquiring eight…

Data in this study showed significant linguistic differences between six- and seven-year-olds and a leveling-off between the seven- and eight-year-olds. (DD)

Results suggest that children can use the rules of conversational sequencing to evaluate the need for an inference to the speaker's intent when speakers deliberately violate a rule. This ability is acquired by six or seven years of age, but children do not correctly infer the speaker's intent until they are eight or nine years old. (Author/RH)

This investigation explored the conversational practices and conversational rule-conformity of children aged four, six, and eight. Procedures included observation of the conversational behavior of children in classroom interaction among peers and a controlled laboratory investigation of the conversations of 18 children, of varying age levels, who…

This study examined age differences in the extent to which children infer and use a speaker's interpersonal goal to understand speech acts and to examine age differences in the extent to which children select responses that carry implications appropriate to the speaker's interpersonal goal. (15 references) (JL)

Two experiments were conducted to determine whether children, ages 4-7 assign invariant labels to objects or describe the objects in terms of the context of alternatives. The acquisition of adjective ordering rules and information limits on children's utterances were also examined. (JMB)

Describes a study to determine: (1) the relationship between age and mean length of utterance measured in morphemes (MLU) in a group of normally developing two- and three-year-old chidren; (2) the standard error of MLU; (3) the relationship between MLU and age; and, (4) the ability of MLU to predict children's grammatical development. (SED)

An experimental study examined the comprehension of sentences containing concessive connectives, considered from an argumentative-conclusive point of view, in 8- to 10-year-old French children (n=24). Two tasks were used: (1) subjects had to choose between opposite preceding contexts of sentences and (2) conclusions that could be drawn from the…

57 Polish-speaking children aged from 2;4, to 4;8 and 16 adult controls participated in a nonce-word inflection experiment testing their ability to use the genitive, dative and accusative inflections productively. Results show that this ability develops early: the majority of two-year-olds were already productive with all inflections apart from…

A study of infant language acquisition investigated the possibility that perceptual or attentional tendencies may guide early word learning by directing infants' attention in linguistically relevant ways. In the experiment, infants aged 9 to 13 months watched a puppet show; with some children, sentences labeling either the objects (noun-frame…