Final answer:
Resocialization is the concept that refers to efforts to radically change someone's personality through careful control of the environment. It is a process where old behaviors are removed and new behaviors are learned. It often occurs in total institutions where individuals have to unlearn their previous behaviors.
Step-by-step explanation:
The concept that refers to efforts to radically change someone's personality through careful control of the environment is resocialization. Resocialization is the process by which old behaviors are removed and new behaviors are learned in their place. It often occurs in total institutions where individuals are isolated from their society, work, and sense of self. These institutions, such as senior care centers or prisons, require individuals to unlearn their previous behaviors and adopt new ones.