Suggests that adults are quicker to learn to match the performance of a model similar to themselves in attitude if he is competent. Similarity of the model interferes with rate of learning if he is incompetent. Tables, graph, and bibliography. (RW)

Presents an experiment showing that naive trainers tend to allow factors such as task difficulty and competence of the trainee to affect the kind of reinforcement administered. Bibliography, tables, and graphs. (JB)

This research focuses on a major characteristic of mass-education: the requirement that each child in the classroom perform the same learning tasks at the same time. Little is known about consequences of such instructional uniformity on learning, emotional growth and interpersonal relations. Three basic experiments were conducted. The first study…