Differential Reinforcement of Low Rates of Behavior (DRL)

DRL (Differential Reinforcement of Low Rates of Behavior) is a behavior modification strategy used to reduce the frequency of a behavior that is socially acceptable but occurs too frequently. Reinforcement is provided when the behavior occurs at or below a predetermined rate within a specified time period. DRL is typically used when the goal is not to eliminate the behavior entirely but to bring it to a more appropriate level.

Example

A student raises their hand frequently during class, which is generally a positive behavior, but it disrupts the flow of the lesson when done excessively. The teacher implements DRL by reinforcing the student only if they raise their hand five times or fewer during the class period. If the student meets the target, they receive a reward such as extra free time or praise. This strategy helps the student learn to regulate their hand-raising behavior to a more appropriate level.

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