The scientific study of behavior without reference to mental processes was of special interest to:
a. jean piaget.
b. john b. watson.
c. sigmund freud.
d. william james.

The study of behavior without reference to mental processes was of special interest to B. John B. Watson

Explanation:

John B. Watson is known for his Classical Conditioning studies and he focused on behavior without giving much importance to the mental processes. He preferred to focus on what was visible, thus the behavior.

Unlike him, Piaget, Freud and James focused mostly on the mental processes. Examples are Psychoanalysis and the study of cognition development.

what words? are you talking about to complet what sentence