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
: one who studies, accepts, or observes the point of view of behavioristics
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Merriam-Webster unabridged
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