Analysis of a one-year-old's lexical development suggested factors causing overextensions: using known words for more recently acquired or unknown words; expressing incomplete knowledge of defining features of two or more similar meaning words; producing overextensions of preferred words; using phonologically simpler more than difficult words; and…

Two experiments showed that: 5- and 6-year-old listeners have difficulties with spatial reference if it includes "left" and "right"; and 7-year-olds understand this limitation on the comprehension skill of younger children and make appropriate allowances by using more landmarks instead. (CB)

This paper explores "fast mapping", one of several processes that have been proposed to be involved in the rapid vocabulary expansion observed in the preschool years. An adaptation of a receptive word matching task examined how well children retained a just-mapped relation between word and referent when some information was later missing.…

Maternal ostensive naming was investigated in a cross-sectional study of 12 children. Display, demonstration, and pointing were coded with regard to whether and how coexisting speech referred to gesture focus. Maternal input was found to be significantly correlated with children's reported receptive vocabulary. (Author/JL)

Data from two-year-old children and mothers were collected concerning age at which she began to read to child, frequency of home reading, number of stories read per week, frequency of visits by child to library. Picture-book reading exposure was more strongly related to receptive than expressive language. Age of onset of home reading routines was…

Evaluates the effect of didactic techniques used during storybook reading on young children's acquisition of new vocabulary introduced in storybooks under three reading conditions: single-reading; repeated-reading and questioning. Findings suggest that didactic techniques used by adults have differential effects on preschoolers' receptive and…

This study examined parental report as a source of information about toddlers' productive vocabulary in 105 low-income families living in either urban or rural communities. Parental report using the MacArthur Communicative Development Inventory-Short Form (CDI) at child age 2;0 was compared to concurrent spontaneous speech measures and…