I managed to get hold of a monograph, Origins of Encounter and Encounter groups. (Moreno & Moreno, 1970). It is a stimulating read. I have just created three separate posts.
Moreno and social science
This monograph has a concise statement that I have not seen before.
This is obviously the main theme of the monograph. Useful. Encounter is so central to Moreno’s opus, but it has not been developed well in practice. It was railroaded by the ‘encounter’ movement.
Moreno, J. L., & Moreno, Z. T. (1970). Origins of encounter and encounter groups (Psychodrama and group psychotherapy monographs, no. 45). Beacon House.