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…

Although the controversy surrounding beginning reading instruction has often centered on the age at which it should be begun, i.e., at the ages of 5, 6, or 7, the position was taken in this study that by the time the child reaches these ages, it is too late for optimum development of reading readiness. As a part of a larger study, groups of…