This study aimed to determine the average ages at which children imitate, produce and comprehend passive constructions. Previous findings that imitation precedes comprehension, which precedes production, are confirmed in this study for children aged 3-8. (CHK)

A longitudinal study of language development is being conducted in which ten recordings of spontaneous speech are being made of l28 children at 3-month intervals. Children were stratified with respect to age, sex, birth month, social and educational family background and family occupations. A matrix was constructed for two groups of children, with…

A number of first language (L1) research studies are examined in an attempt to discover whether the hypothesized similarity between L1 acquisition and second language (L2) learning has any empirical support. The relationship between age and language learning is considered to determine if there are changes in learning ability, rate of learning and…

Factor analysis accounts for most of the variance in adult ratings of concepts with adjectives. Affective reactions are present in young infants, but still to be explored is how the stable adult factor structure develops from these reactions. Three questions are investigated in this study: (1) is this factor structure present in 3- and…

The data in this study are taken from an on-going research project investigating the development of the production of intervocalic consonants in Mexican Spanish. The total project includes both longitudinal and cross-sectional studies of forty children and uses both naturalistic observation and experimental methods. The data discussed here is from…

This study proposes that children's phonological behavior at Stage VI of sensorimotor development may show markedly decreased variability compared to children at Stage V. According to Piaget, sensorimotor development during Stage VI is distinguished from preceding stages by the onset of representational ability and ability to form mental…

This paper explores the relation between the communicative and categorical functions of language and the acquisition of language production. Three major factors in language acquisition are communication, ability for representation and the process of categorization. This paper offers evidence that a sudden and dramatic increase in lexical skill…

Several studies have begun to investigate the claim that children can make most phonological discriminations when they begin to speak. This paper investigates how well children aged 2;3 to 2;11 can discriminate between pairs of minimally different real words, and it shows that the results are affected by how well the children know the words. It is…

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…