Assertion (A) : A great deal of what psychologists as researchers and practitioners do in the field is to pay attention, watch and listen carefully.

Reason (R) : Psychologists use all the senses, noticing what is seen, heard, smelt, tasted, or touched.

Both A and R are true, and R is the correct explanation of A

Both A and R are true, and R is the correct explanation of A. As Assertion and reason are the features of OBSERVATIONAL SKILLS.