Results indicate that subjects first observing apparatus operation by electromechanical means performed task better than those who had not, and that there is no significant difference between performance of subjects who had observed demonstration by electromechanical device and those who had observed a human model. Applicability of findings…

Reading comprehension, indicated by motor behavior and multiple-choice picture selection called for in written instructions, was taught to an autistic child (12 years old). (Author/PT)

The effects on instrumental behavior of differences in type of task, type of reward and three organismic variables (history of social reinforcement from peers, extraversion, and intelligence) were investigated in preschool children. (ST)

Part 1 appeared in Deutsch als Fremdsprache"; v8 n3 p136-150 1971. (RS)

Staddon and Motheral derived a mathematical model of responding in concurrent variable-interval--variable-interval schedules. Their derivation ignores a fundamental aspect of the concurrent schedule contingency. A reinforcer can occur following two consecutive responses on the same schedule or following a switch between the two schedules.…

Heyman's major criticism (TM 504 810) of Staddon and Motheral's reinforcement maximization model is that it does not consider "local" and "interchangeover" interresponse times separately. We show that this separation may not be necessary. Heyman's apparent gain in comprehensiveness may not be worth the added complexity.…

This study undertook to reconcile the views of cognitive and behavioral learning theorists on the issue whether learning without awareness (LWA) is possible, and if so, the circumstances under which it occurs. In Study One, two reinforcement procedures were compared in a structured verbal conditioning task. Study Two was a replication of Study…

For more than two years, the authors of this book were involved in a special project with 41 teenage delinquents whose crimes ranged from auto theft and housebreaking to rape and homicide. Most of these youths had dropped out of public school and were equally unresponsive to the educational program within the Federal penal system at the National…

Two autistic boys, ages 6 and 10 years, whose imitative responding was functionally inaccurate and whose performance generalized poorly, were trained to imitate accurately using a reinforcement-extinction strategy. (DLS)

Concerns the effects of instructions on classical conditioning of the GSR (galvanic skin response). It demonstrates that verbal conditioning of the GSR can be obtained using an innocuous unconditioned stimulus (UCS). Discusses implications for theories of human classical conditioning. (Editor/RK)