A method for modeling the structure of large social systems has been developed which is based on the interpersonal communication networks present in the functioning system. Recent developments in techniques and computer software have made possible the analysis of networks of several thousand persons. The new technique provides a method for…

This booklet surveys all the research studies (approx. 205), undertaken at ETS from July 1968 through June 1969. It offers research results to interested, nonresearch professional readers, and supplements more formal reports for professionals interested in research processes as well. Four major themes in the ETS research program are emphasized:…