What was the Stanford Prison Experiment? Why was it important? As a student of criminal justice the Stanford Prison Experiment is one of the most interesting and important topics you will cover.
The Stanford Prison Experiment was an exploratory study. “Exploratory research in criminal justice can be simple or complex, using a variety of methods.” (Maxfield and Babbie 2005, p.19) The experiment was conducted to attempt to explain what happens when you put ordinary people in a prison environment and give some authority and take away the rights of others. Dr. Philip G. Zimbardo, conductor of the Quiet Rage experiment said, “Prison situations are examples of enormous power differentials… Guards have total power over prisoners who are powerless. Unless there is strict leadership and transparent oversight that prevent the abuse of power, that power will foster abuse.” (Zimbardo, Pelham and Breckler, American Psychological Association: How Psychology Can Help Explain The Iraqi Prisoner Abuse 2004)
The experiment was designed under the rules of Quasi-Experimental design and it’s subgroup of Nonequivalent Dependent Variables design or NEDV. “A quasi-experimental design is one that looks a bit like an experimental design but lacks the key ingredient — random assignment… With respect to internal validity, they often appear to be inferior to randomized experiments. But there is something compelling about these designs; taken as a group, they are easily more frequently implemented than their randomized cousins.” (Trochim 2006)
The two hypotheses of the study were: “What happens when you put good people in an evil place? Does humanity win over evil, or does evil triumph? These are some of the questions we posed in this dramatic simulation of prison life conducted in the summer of 1971 at Stanford University.” (Zimbardo 1999-2009) The main goals of the study were to see if participants turned evil and to see whether the level of humanity of the participants increased or decreased through the experiment.
The Stanford Prison Experiment was utilized to provide answers to two general explanations of where the problems within prisons stem from. “The first was the dispositional hypothesis- prisons are brutal and dehumanizing because of the types of people who run them and are incarcerated in them… The second was the situational hypothesis- the prison environment itself creates brutal dehumanizing conditions independent of the kinds of people who live and work in the institutions.” (Maxfield & Babbie, 2005, p.70) After viewing the experiment it is easy to see how horrific it must have been for those involved, which some would deem it as a failure. However, the experiment was successful in answering where the problems in prisons rise from. The situational hypothesis was verified because all participants were ‘normal’ going in and transformed because of their situation. In some cases the dispositional hypothesis may be true but in this case the prison was being run by average, middle class men of similar intelligence. The prisoners were not real criminals yet they began to act as real prisoners would. The guards were not real corrections officers yet the power and authority associated with their position overpowered their good judgment leading to the maltreatment of the prisoner volunteers.
The important variables in the study were the groupings voluntary participants in the experiment that were derived through strategic subject selection. “We wanted to see what the psychological effects were of becoming a prisoner or guard.” (Zimbardo, The Stanford Prison Experiment Website 1999-2009) Therefore, the variables of the guards and prisoners would play the most important role in exploring the hypotheses. “Ultimately, we were left with a sample of 24 college students from the U.S. and Canada who happened to be in the Stanford area and wanted to earn $15/day by participating in a study. On all dimensions that we were able to test or observe, they reacted normally.” (Zimbardo, The Stanford Prison Experiment Website 1999-2009) This factor was crucial in order to properly evaluate the effects of simulating a prison environment on the participants. If one of the guards varied greatly from the others it would be difficult to calculate whether or not it was the situation the caused their behaviors to change or if they were that way all along and they were carrying out their normal beliefs and actions on the prisoners.
The variables were operationalized through extensive preliminary evaluation exams to weed out those volunteers that were not on par with the mental states of the rest of the volunteers. After this the degradation process began with the guards taking steps to dehumanize the prisoners. “It should be clear that we were trying to create a functional simulation of a prison — not a literal prison… Our goal was to produce similar effects quickly by putting men in a dress without any underclothes. Indeed, as soon as some of our prisoners were put in these uniforms they began to walk and to sit differently, and to hold themselves differently — more like a woman than like a man.” (Zimbardo, The Stanford Prison Experiment Website 1999-2009)
From this point on the prisoners and guards were no longer the equivalent volunteers they were in the beginning of the study. The rights and self-respect of the prisoners were slowly stripping away as the power and control was manifesting on the guards’ behalf. “The guards were given no specific training on how to be guards. Instead they were free, within limits, to do whatever they thought was necessary to maintain law and order in the prison and to command the respect of the prisoners. The guards made up their own set of rules… They were warned, however, of the potential seriousness of their mission and of the possible dangers in the situation they were about to enter, as, of course, are real guards who voluntarily take such a dangerous job.” (Zimbardo, The Stanford Prison Experiment Website 1999-2009) Through this process of operationalization the observer was able to see how quickly the personalities of the prisoners disintergrated and resembled those of actual inmates. He was also able to evaluate how each guard escalated their abuse of power or attempted abuse of power and authority.
In this study the independent variable was the group of men acting as prison guards which means the dependent variable would be the men acting as prisoners for the simulation. The guards were the independent variable because it was their conduct and behavior that forced the study to end early. They were the ones in the position of power which left the prisoners as the dependent variable because their behavior and conduct was dependent upon the conduct of the prison guards. If they were being abused they might act out in a psychotic manner or request to leave, but if they were being treated properly they may act in the proper manner.
A major threat to the validity of this study would be the lack of a control study. “The problem of threats to internal validity refers to the possibility that conclusions drawn from experimental results may not accurately reflect what went on in the experiment itself.” (Maxfield and Babbie 2005, p.181) In this study the end results showed that in the given circumstances the participants in the role of the guard acted out in an evil manner whereas the prisoner participants lost their sense of self. This does not accurately depict what happened in the study or what led up to these results. It would be important to include the extent of the abuse and maltreatment occuring as a result of the study in order to truly understand the ramifications of the guard/prisoner relationship.
The role of the observer in this study was compromised. This is because Zimbardo who was conducting the study was also an active participant in the study through serving as the ‘prison’ superintendent. The researcher was very honest in the analyzing and reporting of his data. It takes a lot of courage to admit when you have made a mistake and this researcher was able to do just that. The directors of the experiment did an excellent job preparing everyone for what was to come. They did not sugarcoat the situation but unfortunately, the participants had not been in this sort of situation and did not know what to expect. None of them expected to be physically harmed or emotionally ravaged as they were. They were aware that this type of situation could have effects afterward but it seemed they were not concerned about that all that much. I would imagine some of the participants suffered from PTSD after the experiment was through in addition to trouble readjusting to ‘real’ life. A transitioning period back into society would have been helpful. Workshops on how to deal with their experiences even though they were ‘fake’ would be important. The prisoners would need to feel validated because even though it was a simulation, they were living it and experiencing the emotions in full force.
This experiment showed that even the most stable of humans have the capacity to cross the line and commit evil acts. It also showed that people are creatures of habit as in the case of the prisoners who after being put in their new environment adapted to the changes and developed new habits. A cause and effect statement could be constructed from the experiment results. This statement could say that if people are put in a situation where they have full control of other people and the freedom to make their own rules and decisions they will grow to abuse that power and in turn abuse the other people.
The experiment was very informative and interesting yet it was not ethically and legally sound. The participants were volunteers for the job but when they wanted to leave by faking illness or insanity, they were pressured into staying. A few prisoners were released for health reasons but initially I believe they should have been released the minute they asked to be because they were there as volunteers. The conductors of the experiment legally had no right to detain them there against their will. This experiment was an extreme case conducted many years ago. When the public caught wind of what had happened they were outraged. The research was necessary and important but these days more attention is paid to the comfort and rights of study participants than originally shown in the Quiet Rage movie.
Maxfield, M. G., & Babbie, E. (2005). Research Methods for Criminal Justice and Criminology. Belmont, CA: Thomson Wadsworth.
Trochim, W. M. (2006). Social Research Methods: Knowledege Base. Retrieved March 27, 2009, from http://www.socialresearchmethods.net/kb/quasiexp.php
Zimbardo, P. G. (1999-2009). The Stanford Prison Experiment Website. Retrieved March 27, 2009, from http://www.prisonexp.org/
Zimbardo, P. G., Pelham, B., & Breckler, S. J. (2004, May). American Psychological Association: How Psychology Can Help Explain The Iraqi Prisoner Abuse. Retrieved March 26, 2009, from http://www.apa.org/topics/iraqiabuse.html
Zimbardo, P. G. (1971). Quiet Rage: The Stanford Prison Experiment. Retrieved March 11, 2009, from Google Video: http://video.google.com/videoplay?docid=6935924833200591885