Reinforcement plays an important role in influencing the learning process. Reinforcement occurs when the learner can see that his efforts have led to success. A person who has such a pleasant experience of success will understandably have a tendency to repeat the activity again and again. In this way successful learning can lead to a continuous renewed willingness to learn. A person whose efforts have met with failure for long duration and frequently will have an expectation of failure before every new learning situation. This negative reinforcement acts as a barrier to learning. (Fig 1)