For representative examples, see: There's no comparison group. These showed that prisoners engaged in normal or even heightened levels of cooperation. These are not merely abstract issues of concern to scholars: To one extent that may be inevitable, given the loss of privacy and freedom. Zimbardo aborted the experiment early when Christina Maslacha graduate student in psychology whom he was dating and later married dating psychology Prisoner,  objected to the conditions of the prison after she was introduced to the experiment to conduct interviews. What came over me was not an accident. Instead, the researchers think their findings may reflect a form of positive personality adjustment to the prison situation: The balance amount standing at their credit will be returned to them at the time of their release. According to Dating psychology Prisoner report, one third of the guards were judged dating psychology Prisoner have exhibited "genuine sadistic tendencies", while many prisoners were emotionally traumatized, and three of them had to be removed from the experiment early. Mentally Ill and Developmentally Disabled Prisoners Perhaps not surprisingly, mental illness and developmental disability represent the largest number of disabilities among prisoners.