This study examined the specific effects of picture and object stimuli on two types of language performance: comprehension and performance. Subjects were 48 4- and 5-year-olds who were randomly assigned to one of four groups. Groups were matched for SES, sex, and age and tested individually with one of the four measures: language comprehension…

This study of language development was intended to chart the developmental course of the spontaneous use of negatives and affirmatives by 1 1/2 - 3-year-olds in response to true or false statements concerning familiar objects, properties, and actions. Forty children, 18, 24, 30, and 36 months of age, were assessed for knowledge of the words used…

This study is an attempt to identify social interactions which fit into a Piagetian model for cognitive change, and specifically to examine the degree to which the frequency of those interactions predicts the rate of cognitive development. The subjects were 74 elementary school children enrolled in 19 K-4 classrooms. These children were in the…

This report is the result of an investigation conducted to identify the current issues, resources, and funding priorities in Spanish-English bilingual education in the United States. Although it deals solely with Spanish-English bilingualism, a great deal of the material should prove to be relevant to other bilingual situations in the United…