ABSTRACT
A comparison of these equations with those for concurrent schedules shows that the denominators differ. For concurrent schedules (Equation 2.11), reinforcers
on one schedule occur in the context of all other reinforcers, equally weighted. To put this another way, when all reinforcers are concurrently available, the interaction due to reinforcers from other sources is maximal (m for concurrent schedules is 1.0). In multiple schedules (Equation 3.1), the influence of the reinforcer rate in the alternate component is less than maximal (m < 1) because those reinforcers are occurring at other, presumably discriminable, times. Of course, if the alternate component is very distant (temporally) from the component in question, m might be zero, and the response rate in that component would be just like that in a single schedule (Equation 2.2).
