Final answer:
The best search term for a report on John Watson is 'behavior' because he was a major figure in the field of behaviorism, which focuses on observable behaviors rather than internal mental states.
Step-by-step explanation:
In researching a report on John Watson, the most suitable search term would be behavior. John B. Watson was an influential American psychologist and a major proponent of behaviorism, which is a theoretical approach that focuses on observable behaviors rather than on consciousness or internal states. He believed that psychology should primarily be the science of observable behavior. Watson conducted experiments to understand and control behavior, often using animal models, under the assumption that findings could be applied to human behavior.
Watson's work differed significantly from earlier psychologists like Wundt and James who were more concerned with studying conscious experience. Instead, Watson and the behaviorists who followed sought to study behavior that could be directly observed and measured, moving away from abstract concepts like consciousness, feelings, and the mind.