Questions regarding the generalizability of results from educational experiments have been at the forefront of methods development over the past five years. This work has focused on methods for estimating the effect of an intervention in a well-defined inference population (e.g., Tipton, 2013; O'Muircheartaigh and Hedges, 2014); methods for…

Project objectives included (1) establishing a body of knowledge concerning the role of the Hawthorne effect in experimental designs in educational research, (2) assessing the influence of the Hawthorne effect on educational experiments conducted under varying conditions of control, (3) identifying the major components comprising the effect, and…

Described is a search for optimum child rearing practices in a seven-child Russian family over a period of 16 years. Intellectual development, creative ability, and physical development are discussed. Results indicate positive effects of early physical and mental stimulation. (Author/DB)

Reexamines existing research in persuasion by testing the predispositional and alignmental hypotheses. Evidence of past investigative failures is discussed and implications for future research are presented. (MH)

Thirty-five manuscripts from a national conference dealing primarily with Personalized System of Instruction are collected and grouped by topic. Areas covered include application of individualized teaching to new content areas, experimental comparisons of individualized procedures and traditional methods, students teaching other students, academic…

BAER, PETERSON, AND SHERMAN HAVE ATTEMPTED TO BUILD A GENERALIZED RESPONSE SYSTEM (GRS) IN THE FORM OF IMITATIVE BEHAVIORS (IB) IN THREE SEVERELY RETARDED CHILDREN (S'S). IN THE FIRST PHASE OF THE STUDY, 130 IMITATIVE RESPONSES WERE TAUGHT BY IMMEDIATE, INDIVIDUAL REINFORCEMENT. THE S'S ALSO PERFORMED RESPONSES WHICH WERE NEVER REINFORCED. BY…

An experiment in language behavior comparing two methods of learning grammatical word order in a new language presents scientific evidence supporting the use of pattern drills in foreign language teaching. The experiment reviews the performance of three groups attempting to learn small segments of Russian "microlanguage": (1) a drill group learned…

This book presents the cybernetic theory of learning and the evidence which supports it. Learning is more than the openloop forming of new stimulus-response associations--it is a process of reorganization of sensory feedback within a closed loop, or pattern, which increases the learner's level of control over his own behavior and the stimuli in…