Previous work suggests that key factors for replicability, a necessary feature for theory building, include statistical power and appropriate research planning. These factors are examined by analyzing a collection of 12 standardized meta-analyses on language development between birth and 5 years. With a median effect size of Cohen's d = 0.45 and…

The interconnectedness of bilingual memory remains a topic of great debate. Semantic priming provides a powerful methodological tool with which to investigate this issue in early bilingual toddlers. Semantic priming effects were investigated in 21 bilingual toddlers (2.5 years) within and across each of their languages. Results revealed the first…

This study examined abstract syntactic categorization in infants, using the case of grammatical gender. Ninety-six French-learning 14-, 17-, 20-, and 30-month-olds completed the study. In a preferential looking procedure infants were tested on their generalized knowledge of grammatical gender involving pseudonouns and gender-marking determiners.…

Two-year-olds use the sentence structures verbs appear in--"subcategorization frames"--to guide verb learning. This is syntactic bootstrapping. This study probed the developmental origins of this ability. The structure-mapping account proposes that children begin with a bias toward one-to-one mapping between nouns in sentences and participant…

In the last 50 years, researchers have debated over the lexical or grammatical nature of children's early multiword utterances. Due to methodological limitations, the issue remains controversial. This corpus study explores the effect of grammatical, lexical, and pragmatic categories on mean length of utterances (MLU). A total of 312 speech samples…

Despite the prevalence of bilingualism, language acquisition research has focused on monolingual infants. Monolinguals cannot learn minimally different words (e.g., "bih" and "dih") in a laboratory task until 17 months of age ( J. F. Werker, C. T. Fennell, K. M. Corcoran, & C. L. Stager, 2002). This study was extended to 14- to 20-month-old…

Research suggests that children with specific language impairment (SLI) have processing limitations; however, the mechanisms involved have not been well defined or investigated in a theory-guided manner. The theory of constructive operators was used as a framework to explore processes underlying limited processing capacity in children with SLI.…

Tests the hypothesis that mothers would label objects with adult-basic level terms when talking to other adults, but would label the same objects with child-basic terms when speaking to their young children who were just starting to talk, even though these labels may be very much "incorrect" by adult standards. (Author/RH)

Results from these two studies show that fast mapping--gaining information about a word from how it is used in a sentence, what words it is contrasted with, and other factors--can be used successfully by children two to four years old to form quick and rough hypotheses about the meaning of a word. (PCB)

Reveals that young children acquiring Mandarin Chinese differentiate subject from topic, even though Chinese is a "topic-prominent" language. Data are based on results of a standardized, elicited imitation test of 95 Chinese children in Taiwan. Subjects between 2 years, 6 months and 5 years of age responded to coordinate as well as…

Data from four recent language studies are examined to explore issues in concept-word relationships. Issues considered include: lexical development, bases of application, single-word functions, semantic domains, categorizing through naming, and concept matching as a model of word learning. (JMB)

Selected spontaneous errors of word choice made between the ages of two and five by two children whose language development had been followed longitudinally were analyzed for clues to semantic developmnet. (JMB)

English- and Japanese-speaking children aged four and five were asked to say the opposite of statements. Statements varied in truth value and unmarked/marked membership of antonym pairs. Findings did not support a universality hypothesis; differences were found between the two groups in the use of semantic and syntactic denial. (Author/CB)

Examined the use by children of the Novel Name-Nameless Category principle, under the framework that lexical principles are acquired in a developmental sequence. Results indicated that the particular principle was not available at the start of lexical acquisition but that exhaustive categorization ability and a vocabulary spurt occur…

Subjects ranging in age from 7 to 12 years selected correct story completion alternatives significantly more often when these alternatives were similes than when they were semantically equivalent metaphors, and when alternatives specifically denoted the referent of the metaphorical comparison than when the identity of the referent had to be…