Four second-grade teachers completed the Classroom Behavior Inventory for every student in their class (N=101). Subjects were classified as either reflective (N=32) or impulsive (N=32) by using the Matching Familiar Figures Test (MFF). (Author)

A survey of the adaptive behavior of 426 community-placed mentally retarded individuals (76 percent of whom were 13-to 49 years-old) was conducted through small group, tape recorded interviews with their 109 caretakers. (Author)

Design of a research project is discussed that tests the development of role orientation of individual high school students over four-year period to move toward greater adult orientation. (Author/ND)

Reports results of a study of 274 4-year-olds in 17 half-day nursery classrooms, which examined: (1) the relationship between class size and individualization; (2) the influence of space on children's involvement in activities; and (3) the impact of various activity areas on children's and teacher's behavior. (ED)

Provides data indicating that development occurs in cycles, with behavioral competencies appearing and developing and then disappearing only to reappear again in a more complex form at a later age. Data on conservation and auditory-manual coordination in infancy are used to support this theory. (ED)

Summarizes the Sapir-Whorf Hypothesis on language and thought process, along with several critical viewpoints. The writings of Koschmieder, Gipper, and Lenneberg, as well as psychological and linguistic aspects of experiments on color differentiation and conditioned response, are discussed. (Text is in German.) (DH)