A system for rewarding a behavior can be classified along two independent dimensions: first, whether the reward is based on the passage of time or on the number of responses, and second, whether that requirement is predictable or unpredictable. Analyze the reward system described in the case study below based on these two dimensions.

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Partial reinforcement schedules are categorized based on two key dimensions. The first is whether the schedule is an 'interval' type (based on the time between reinforcements) or a 'ratio' type (based on the number of responses). The second dimension is whether the schedule is 'fixed' (the time or number of responses is constant and unchanging) or 'variable' (the time or number of responses changes unpredictably).

Dimensions of Partial Reinforcement Schedules

In a fixed interval reinforcement schedule, a reward is given for a desired behavior only after a specific, unvarying amount of time has passed. Any instances of the behavior that occur before the interval is over are not reinforced. This schedule is considered the least productive in terms of response rate and is the easiest to extinguish, as the behavior tends to cease quickly if the reinforcement is not delivered at the expected time.

Fixed Interval Reinforcement Schedule

In a variable interval reinforcement schedule, reinforcement is delivered after unpredictable and varying periods of time have passed. Because the timing of the reward is not known, this schedule tends to produce a steady and consistent rate of response.

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