The victim’s responses were a key element in the situation and needed to be worked out carefully. In pilot studies, at first no vocal feedback from the victim was used. It was thought that the verbal and voltage designations on the control panel would create sufficient pressure to curtail the subject’s obedience. However, this proved not to be the case. In the absence of protests from the learner, virtually every subject in the pilot study, once commanded, went blithely to the end of the board, seemingly in-different to the verbal designations.
