I.Introduction Experimental psychology is an area of psychology that utilizes scientific methods to research the mind and behavior. While students are often required to take experimental psychology courses during undergraduate and graduate school, you should really think of this subject as methodology rather than a singular area with psychology. Many of these techniques are also used by other subfields of psychology to conduct research on everything from childhood development issues.

II.Objectives 1. To know how did experimental psychology start. 2. State the psychologists who pioneered in experimental psychology. 3. Having knowledge about the instruments used in experimental psychology 4. To know the methods used in experimental psychology. 5. What are the processes used in experimental psychology?

III.Definition of Terms
Experimental Psychology - refers to work done by those who apply experimental methods to the study of behavior and the processes that underlie it.
Stereoscope - The first stereoscope was invented by Wheatstone in 1838.It presents two slightly different images, one to each eye, at the same time. Typically the images are photographs of the same object taken from camera positions that mimic the position and separation of the eyes in the head. When one looks through the stereoscope the photos fuse into a single image that conveys a powerful sense of depth and solidity.
Colorimeters - These determine the color composition by measuring its tricolor characteristics or matching of a color sample. This type of device would be used in visual experiments.

IV.Summary

1. 20th century
In the middle of the 20th century, behaviorism became a dominant paradigm within psychology, especially in the United States. This led to some neglect of mental phenomena within experimental psychology. In Europe this was less the case, as