according to the textbook, for clinicians, what is the lesson of the deinstitutionalization of the 1960s? the strict use of biological therapy to treat schizophrenia is the best and only necessary approach. although the biological treatment of schizophrenia is important and effective, it is also necessary to address the psychological and sociocultural needs of these individuals. biological therapy is a waste of resources, and the focus of treating schizophrenia should be on sociocultural needs. adhering to a strict biological approach when treating schizophrenia should be best practice.