Hi Yea Exp Psychology refers to Experimental Psychology. Experimental Psychology is a basic field of psychology that deals with the study of higher level mental processes and our cognition. It also covers topics like Learning, Motivation, Emotion, Intelligence, Artificial Intelligence.
In Psychology, Experimental Psychology also consists of a number of laboratory based practicals. But in css syllabus, no such practical is included.
However, the Experimental Psychology has changed its direction and nature in modern day psychology. Now its popularly called Cognitive Psychology.
I hope, this reply would clarify your confusion.
Regards.

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