Experimental psychology is a methodological approach to a certain extent than a subject matter and includes different fields surrounded by psychology. Experimental psychologists by tradition carried out investigation, published articles, and trained classes on neuroscience, developmental psychology, consciousness, awareness, concentration, realization, education, recollection, philosophy, and verbal communication.

In recent times, on the other hand, the experimental approach has extended to enthusiasm, sentiment, and social psychology.

Experimental psychologists carry out investigation with the help of experimental techniques. The concern of experimental psychology is to discover the process essential performance and cognition.

In the first half of the twentieth century, behaviorism turns out to be a leading paradigm within psychology, particularly in the United States .

This led to a little overlook of mental phenomena in experimental psychology. In Europe this was not as much of the case, as European psychology was prejudiced by psychologists such as Sir Frederic Bartlett, Kenneth Craik, W. E. Hick and Donald Broadbent, who was paying attention on subject such as thoughts, remembrance and consideration. This laid the fundamentals for the following development of cognitive psychology.

In the latter half of the twentieth century, the phrase "experimental psychology" has transfer in meaning due to the spreading out of psychology as respect and the enlargement in the volume and figure of its sub-disciplines.

Experimental psychologists make use of a variety of methods and do not lock up themselves to a sternly experimental come within reach of, partially because development in the philosophy of science has had an impact on the exclusive status of carrying out tests.