The history of the Yale Psycho-Educational Clinic can be separated into two time periods. During the first time period from 1963 to 1965, Sarason and his colleagues aimed to gain entrance into various settings by partnering with organizations, including public schools, anti-poverty programs, and a center for intellectually disabled people. During the second time period from 1965 to 1973, Sarason and the clinic staff focused on studying how settings were created and factors that influenced their longevity. Sarason's main method of investigation involved him acting as a participant-observer who collaborated with various organizations to help solve problems (e.g., low student academic performance, low recruitment for anti-poverty programs). Based on this work, Sarason argued that clinical psychologists should expand their individual-based focus and consider how broader settings contribute to both well-being and pathology. He also argued that changing and reforming settings requires a deep understanding of those settings. Finally, Sarason identified several issues that are relevant to the creation and sustainability of settings, such as having positive external relationships with other people and organizations, having strong leadership at the organizational level, and maintaining realistic expectations about the organization's needs and influence. Sararson's and his colleagues’ work at the clinic resulted in seven books and many articles.