What does Differential Reinforcement of High Rates of Behavior (DRH) require?

Differential Reinforcement of High Rates of Behavior (DRH) is a concept in behavior modification that encourages a higher frequency of a desired behavior by reinforcing that behavior only when it occurs at or above a specified rate. The essence of DRH lies in setting a requirement that responses must happen within a certain time frame after the last response in order to receive reinforcement.

By defining this time constraint, DRH not only promotes increased frequency but also helps to minimize instances of lower rates of the behavior. This strategy is effective, especially in situations where you want to increase engagement or productivity, as it motivates the subject to respond more rapidly to achieve reinforcement.

While other options mention various reinforcement schedules, they do not capture the fundamental requirement of DRH related to the timing and frequency of responses in relation to the last behavior.