This paper focuses on the aspects of the lexicon in 66 prematurely born very-low-birth-weight and 87 full-term Finnish children at 2;0, studied using the Finnish version of the "MacArthur Communicative Developmental Inventory". The groups did not differ in vocabulary size. Furthermore, the female advantage in vocabulary size was not seen…

In written French, the acquisition of the nominal plural ("-s") occurs earlier and faster than the acquisition of the verbal plural ("-nt") (Totereau, Thevenin & Fayol, 1997, "Learning to Spell"). The reasons for this difference are not well known. The objective of the present research is to test two alternative hypotheses, which may provide an…

The relationship between the use of concrete objects and pictorial representations of those objects when teaching noun labels to 3 autistic boys was analyzed. Although results indicated no consistent functional relationship between the two types of stimulus presentation, there were varying degrees of generalization between the two conditions.…

Investigates how the noun and verb classes develop in the free speech of a French child between the ages of 1 year, 2 months to 2 years and 6 months from the perspective of semantic and grammatical development. Analyses indicate that in French acquisition, nouns clearly predominate over verbs until 20 months of age at least, but that verbs are…

Investigated whether infants can construe the same set of objects as an object category or as embodying an object property. Results of 2 experiments involving 48 and 64 14-month-olds respectively suggest that infants have begun to distinguish nouns from adjectives, they expect different grammatical forms to highlight different aspects, and that…

Examined input frequency, sentence position, and duration as contributing factors to grammatical inflections. In parents' conversations with and stories aimed at young children, noun plural inflections were more frequent than third singular verb inflections, especially in sentence-final position. Analysis of four mothers' speech when reading…

Children's acquisition of the mass-count distinction in English was investigated. In order to determine whether children approach the distinction as a morphosyntactic or a semantic distinction, 88 monolingual children aged 3-9 years were asked to judge the acceptability of 32 sentences containing "much" or "many" with 8 types of nominals. The…

Twelve pairs of three-year-olds and twelve pairs of five-year-olds were monitored in a play situation; their transcribed speech was examined for use of nominal reference, with attention to pronominalization and ellipsis. For the corpus of nominal references, there was a clear trend toward normal progression from specific indefinite to definite to…

The transition from slow to rapid word-learning was examined in a longitudinal study of 18 children. Results revealed that most children evidenced a prolonged period during which rate of acquisition increased, with most of the acquired words being nouns, while those who demonstrated gradual word-learning acquired a balance of nouns and other word…

Assessed 2-year olds' ability to use semantic context to infer meanings of novel nouns and to retain those meanings. Found that children learned majority of novel words; however, they occasionally failed to choose the correct corresponding picture for a novel noun even when they understood the verb; also found a significant retention of newly…

Children tend to choose an entity they cannot already label, rather than one they can, as the likely referent of a novel noun. The effect of input that contradicts this strategy on the interpretation of other novel nouns was investigated. In pre- and posttests, 4-year-olds were asked to judge whether novel nouns referred to "name-similar" familiar…

Utterances expressing generic kinds (''birds fly'') highlight qualities of a category that are stable and enduring, and thus provide insight into conceptual organization. To explore the role that linguistic input plays in children's production of generic nouns, we observed American and Chinese deaf children whose hearing losses prevented them from…

Several researchers have suggested that definitional skill explains academic success/failure (Gagne, 2004; Snow, 1987). The words used to investigate definitional skill have all been concrete words given in the first language (L1) and/or the second language (L2) of the participants. This paper reports a study investigating the quality of the…

Between their second and fifth years, young children learn approximately 15 new words a day. For every word the child hears, he or she must choose the correct referent out of an infinite set of candidates. An important problem for developmental psychologists is to understand the principles that limit the child's hypotheses about word meanings. A…

The development of devices used to coin agent and instrument nouns in Hebrew was investigated among 60 children aged 3, 4, 5, 7, and 11. The prevalent word-formation device in Hebrew is the triconsonantal root combined with vowel patterns. Other available devices include suffixation, conversion, and compounding. Questions designed to elicit…