behavioral approach

Behavioral psychology is one of the major topics taught in every introductory psychology course, yet many concepts that lie at the heart of this subject can be confusing for students. If you've ever found yourself confusing the unconditioned stimulus with the conditioned stimulus, this basic tutorial is for you.
Behavioral psychology, also known as behaviorism, is a perspective that became dominant during the early half of the 20th century thanks to prominent thinkers such as B.F. Skinner and John B. Watson. The basis of behavioral psychology suggests that all behaviors are learned.
There are a number of different phenomena that impact classical conditioning. These factors can impact how quickly a behavior is acquired and the strength of that association. For example, a process known as extinction occurs when an association disappears; this causes the behavior to gradually disappear.
Behavioral psychology has been influenced by a number of prominent thinkers. Part of understanding the history and background of these behavioral principles involves learning more about the individuals who first discovered and advocated these theories.

ivan pavlon - The Russian physiologist who discovered classical conditioning.

john b watson - An American psychologist who believed that psychology should be the science of observable behavior
B.F. skinner -  One of the best-known behavioral thinkers; best known for his theory of operant conditioning.