Which term is defined as the systematic weakening of behaviors due to the removal of reinforcement?

The term that describes the systematic weakening of behaviors due to the removal of reinforcement is extinction. Extinction occurs when a previously reinforced behavior is no longer followed by the reinforcer, leading to a decrease in the frequency of that behavior over time. This process is foundational in behavior analysis, as it highlights how behaviors can diminish when they are not reinforced, demonstrating the principle that reinforcement is crucial in maintaining behaviors.

In the context of behavior analysis, understanding extinction helps practitioners develop strategies to manage behaviors effectively, ensuring that individuals do not engage in maladaptive or undesired behaviors that may have been previously reinforced.