This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
All of the following are done in behavior therapy to increase a behavior except: 
Select and explain. 
A. Punishment, B. Operant conditioning, C. Negative reinforcement, D. Reward
A: Punishment
Answer: A: Punishment 
Explanation: A i.e. Punishment Punishment & frustrative-non reward lead to decrease in resultant behavior, whereas both positive & negative reinforcements increases (reinforces) the frequency of a paicular response. Operant conditioning describes how consequences of a behavior lead to an increase or decrease in that behavior. Behavior is increased when it is followed by reward (Positive reinforcement) or removal of unpleasant stimulus (negative reinforcement) and reduced by taking away a positive stimulus (frustrative-non reward) or adding a negative stimulus (punishment).