The Skinner Box was created by Behaviorist B.F. Skinner who used it to study animals such as rats and pigeons. The chamber (in the shape of a box) contains either a lever or key that can be pressed in order to receive reinforcements such as food and water. There was also a mechanism that recorded all the behaviors of the animals, the schedules of reinforcement the animals were on, etc. It was a very controlled environment that Skinner used to meticulously study behavior. The Skinner Box created what is known as Free Operant Procedure – responses can be made and recorded continuously without the need to stop the experiment for the experimenter to record the responses made by the animal.