Reinforcement is defined as?

Reinforcement is a fundamental concept in behavior therapy, particularly in the context of behavior modification. It refers to any consequence that, when it follows a behavior, increases the likelihood that the behavior will occur again in the future. In this case, the correct definition identifies reinforcement as a consequence that results, on average, in an increase in a behavior.

When a behavior is reinforced, it is typically because the individual receives something desirable (positive reinforcement) or avoids something undesirable (negative reinforcement) as a result of that behavior. For example, when a child receives praise for completing their homework, they are more likely to repeat that behavior in the future. This dynamic is essential to understanding how behaviors are learned and maintained over time.

In contrast, other options refer to concepts associated with behavior but do not accurately define reinforcement. For instance, a consequence that results in no change or a decrease in behavior falls under extinction or punishment rather than reinforcement. Understanding this core principle is crucial for effectively applying behavior modification strategies in therapeutic settings.