متن اصلی - انگلیسی - Individual case studies and individual differences

The shift from the study of individual persons to the study of individual differences had profound effects on the history of psychology. The study of reputation - an important feature of interpersonal relationships - sank almost without trace under a rising tide of psychometric research. The case-study method, hampered by interesting but unconvincing psychoanalytic theories and procedures, suffered a similar fate.