Amedical professional who has a doctoral degree in psychology and is versed in the diagnosis and treatment of abnormal behavior is a(n)

clinical psychologist

Explanation:

Clinical psychologist -

A clinical psychologist is the mental health professional , who helps to treat any type of mental and emotional illness , any abnormality in the behavior and obsessive - compulsive disorder , is referred to as a clinical psychologist.

These people have done doctorate degree in psychology , to enter into this profession.

Hence, from the given information of the question, the correct term is a clinical psychologist .

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