In a Duration Reinforcement Schedule, when must the response occur to earn a reward?

In a Duration Reinforcement Schedule, the response must occur for a specific fixed interval of time to earn a reward. This means that the behavior must be sustained continuously for the set duration. The trainer reinforces the dog for maintaining the behavior for that entire time period, which encourages the dog to engage in the behavior consistently over the length of the interval.

This approach effective promotes endurance and stability in behavior, as the dog learns that it will only receive reinforcement once they have successfully held the desired behavior for the entirety of the designated duration. By structuring the reinforcement around time, it encourages practicing the behavior over a sustained period rather than in brief or momentary bursts.