A study which required children (ages 7-19) to make and justify decisions about which literary fragments belonged to the same work. Responses provided information about relative appeal of style and subject matter; kinds of stimuli and alternatives most likely to elicit literary style sensitivity; and strategies and rationales employed by subjects.…

Reports on three studies which investigated the development of the concept of horizontality in subjects from nursey school through college age. Normative data collected allowed for evaluation of Piaget's stages and for differences due to age, sex, and apparatus shape and orientation. (ED)

Examined age and gender mixing among students, ages 4-19, at an ungraded, self-directed, democratically structured school. Found that age mixing was more frequent for 12- to 15-year-olds than for younger or older students, and that gender mixing was less frequent for 8- to 11-year-olds than for any other age group. (MDM)

Three experiments focused on the function relating children's response time to adults' response time in corresponding conditions. In all experiments, children's response times increased in a linear manner as a function of adults' response times. (BB)

Examined discussions of 25 groups of peers who were in second, fifth, ninth, and twelfth grades, or were young adults. Trends in topicality arguments paralleled trends for other types of talk. With regard to the function of arguments, person-focused function declined in middle childhood but information-focused function increased. However,…