Five experiments examined whether overt repetition (i.e., saying a word aloud) during exposure is critical to the expressive learning of new words. When participants did not engage in overt repetition during exposure, they nevertheless exhibited clear expressive learning, both with and without an accompanying semantics, indicating that overt…

Describes a follow-up study of 25 boys who had been diagnosed with Specific Expressive Language Delay (SELD) at 24 to 30 months of age. At three to four years, half of the boys continued to exhibit poor expressive language skills, suggesting that young children diagnosed with SELD are at considerable risk for continuing language problems. (33…

Analysis of videotapes of 19 parent-child dyads during bookreading when children were 2.5 years old, and subsequent analysis of the children's paradigmatic thought organization at 3.5 years, revealed a significant correlation between superordinate level labels in parents' talk and 3 measures of children's paradigmatic organization. (45 references)…