What is a key characteristic of positive reinforcement?

A key characteristic of positive reinforcement is that it involves providing a desirable stimulus or reward following a desired behavior to increase the likelihood of that behavior being repeated in the future. This principle is grounded in the idea that behaviors followed by favorable outcomes tend to be strengthened, which is essential in various behavioral interventions, particularly in communication disorders therapy. By offering something of value or pleasure, such as praise, tokens, or any preferred activity, the goal is to reinforce the target behavior, making it more likely that the individual will engage in that behavior again.

The other options do not accurately define positive reinforcement: it does not focus on reducing behaviors, nor is it contingent upon the use of negative reinforcement, which operates on a different principle. Additionally, positive reinforcement is applicable at the individual level rather than just focusing on group achievements.