The use of observation of natural language interaction as a measure of language proficiency and the impact of discourse characteristics on children's use of Spanish and English as measured by length of utterances are examined. The goal of this observational approach to measuring language proficiency is to distinguish between the effects of change…

Dialogue from 30-minute samples from "Sesame Street" and "Mr. Rogers' Neighborhood" was coded for grammar, content, and discourse. Grammatical analysis used the LINGQUEST computer-assisted language assessment program (Mordecai, Palen, and Palmer 1982). Content coding was based on categories developed by Rice (1984) and…

When lexical availability was manipulated through discourse support and word frequency for 40 target nouns, measurement of effects on length, complexity, order of mention, and fluency of 4- to 8-year-olds' utterances showed that the number and length of responses containing the target word varied with age, word frequency, and discourse support…