## **Core Concept**
The question tests understanding of learning theories applied in behavior therapy, specifically focusing on the use of responses as reinforcers to change maladaptive behaviors. The core concept here involves operant conditioning, a type of learning in which behavior is modified by its consequences.

## **Why the Correct Answer is Right**
The correct answer, **Operant Conditioning**, is right because this type of learning specifically involves changing behavior based on its consequences, such as rewards or punishments. In operant conditioning, a behavior is strengthened if followed by a reinforcing stimulus (positive reinforcement) or weakened if followed by a punishing stimulus. The use of responses as reinforcers to change maladaptive behaviors directly aligns with the principles of operant conditioning. This technique is commonly used in behavior therapy to encourage desired behaviors and discourage undesired ones.

## **Why Each Wrong Option is Incorrect**
- **Option A: Classical Conditioning** is incorrect because it involves learning through associations between stimuli, not through consequences of behavior. Classical conditioning, famously demonstrated by Ivan Pavlov, involves involuntary, automatic responses to stimuli.
- **Option B: Social Learning** is incorrect because, while it does involve learning behaviors by observing and imitating others, it doesn't specifically focus on the use of reinforcers as a primary mechanism for changing behavior.
- **Option D: Cognitive Learning** is incorrect because it emphasizes the acquisition of knowledge and understanding through mental processes, not the direct modification of behavior through reinforcement.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that operant conditioning is widely used in clinical settings for behavioral modification. Techniques such as positive reinforcement, negative reinforcement, and extinction are commonly applied. For example, in the treatment of addiction, a therapist might use a token economy (a form of positive reinforcement) to encourage sober behavior.

## **Correct Answer:** C. Operant Conditioning