behaviorist vs psychologist

behaviorist and psychologist both are nouns.

Word	Noun	Adjective	Verb	Adverb
behaviorist	Yes	Yes	No	No
psychologist	Yes	No	No	No

As nouns, psychologist is a hypernym of behaviorist; that is, psychologist is a word with a broader meaning than behaviorist:

behaviorist (noun)	psychologist (noun)
a psychologist who subscribes to behaviorism	a scientist trained in psychology

behaviorist (adjective)	psychologist (adjective)
of or relating to behaviorism