In most studies of choice under concurrent schedules of reinforcement, two physically identical operanda are provided. In the "real world," however, more than two choice alternatives are often available and biases are common. This paper describes a method for studying choices among an indefinite number of alternatives when large biases are…

What are the main influences on the day-to-day motivation of classroom teachers? The particular focus in this research is the micro-events that teachers experience and which enhance or undermine their motivation. We conceptualise such events in terms of their proximity/distance. We suggest that experiences with a proximal origin (classroom and…

An institutionalized, retarded, adult male's response to verbal commands was increased through the use of positive control of a discriminative stimulus. Operant conditioning was noted as a possible means of enabling retarded individuals to acquire behaviors fundamental to a self-help repetoire. (Editor)

This article presents and compares current research practices surrounding the use of rewards in classroom management. A motivational model emerges of the use of extrinsic rewards with special needs learners to build intrinsic motivation. Teachers' use of praise as the focal point to multiple rewards and students' need for equity are also…