behavioralist
noun
be·hav·ior·al·ist
| \ bi-ˈhā-vyə-rə-list, bē-\
variants:
or British behaviouralist \ bi-ˈhā-vyə-rə-list , bē- \
plural -s
Definition of behavioralist
: one who studies, accepts, or observes the point of view of behavioristics