Analysis of speech samples from British female adults (N=8) revealed that the subjects increased vocal pitch when addressing young children, but not as much as previously studied North American subjects did. Pitch increases were more commonly observed in free speech than in reading-aloud conditions. (23 references) (Author/CB)

Describe studies in which day-long recordings were made of nine-year-old children's spontaneous speech. Results indicate that: (1) children aged five to 15 speak some 20,000 words of discourse per day in about two to three hours of pure speaking time; (2) they have an active vocabulary of some 3,000 word-form types. (SED)