A dog rewarded for the first bark every ten minutes is reinforced on which schedule?

The correct schedule for a dog rewarded for the first bark every ten minutes is a fixed interval schedule. In this type of reinforcement schedule, the subject receives a reward after a set amount of time has passed, which in this case is ten minutes. This means that the dog's first bark after the ten-minute mark is what earns it a reward, consistently reinforcing the behavior at those specific time intervals.

To further clarify, fixed interval schedules are known to produce a pattern of behavior where the subject may become more active as the end of the interval approaches, known as a "scalloped" response pattern. In contrast, variable interval schedules provide rewards at unpredictable time intervals, which generally leads to a more steady rate of responses over time. Fixed ratio schedules involve reinforcement after a specific number of responses, and variable ratio schedules vary the number of responses needed for reinforcement. In this scenario, since the reinforcement is tied to a specific time rather than a specific number of barks, the fixed interval is indeed the correct classification.