“…We developed a more practical and intense week-long workshop so that the trainees could go through the complete handbook, see videotapes of a variety of problems, role-play solutions to those problems by applying the major elements of the model, and finally the trainees were evaluated and given feedback and suggestions about their role-played solutions. We conducted research to evaluate and validate that training program (Braukrnann, Fixsen, Kirigin, Phillips, Phillips, & Wolf, 1975;Kirigin, Ayala, Braukrnann, Brown, Fixsen, Phillips, & Wolf, 1975;Willner et al, 1977).…”