DEADLY QUARTET, these processes are four in number. They are designed as classes of processes to handle these four points: (1) help factor, (2) control factor, (3) pc communication factor, (4) interest factor. Unless these four points are present in a session, it is improbable, in a great number of cases that any real, lasting gain will be made. (HCOB 21 Apr 60)
Hubbard, L. R., (1975) Dianetics and Scientology Technical Dictionary. Los Angeles: Church of Scientology of California Publications Organization.