Psychological research on the principles of learning has most directly influenced the development ofa. psychoanalysis. b. behavior therapy. c. humanistic therapy. d. psychodynamic therapy. e. cognitive therapy

B. behavior therapy

Explanation:

In the principles of learning, the researchers able to collect a list of factors that make people able to learn new things more effectively.

the purpose of behavior therapy is to make the patient learn to change the self-destructive behaviors that he/she has and improve their life in the long run. In order to learn the new behavior more effectively, psychologists often implement the factors in principles of learning to accelerate the process.