In what way did the behavioral perspective in psychology differ with almost every other perspective to come before it

It rejected any reference to "the mind" and focused on observable behavior as the only legitimate topic of the field.

Explanation:

Behavioral Psychology is one of the three major areas of Psychology, together with psychoanalysis and humanism. Together, these theories are considered the triad that underlies modern psychology. The behaviorist concept holds that all behaviors are learned, and it is even possible to predict certain attitudes under certain conditions. This strand of psychology is the only one that rejects the search for problem solving based on the human mind, as it advocates observable behavior as the only legitimate topic in the field of psychological study.

answer; planning ahead;

pathogens is the answer