Variables:
The independent variable of this experiment was the type of groups the participants were in. The participants who were in the animal group and human group got corresponding images on their response sheets (see Appendix 3 and 4). The dependent variable in this experiment was the response that participants put in regards to what they saw in the Rat-Man image. Whether that was a man or a rat. The controlled variable of this experiment was the inclusion of a group that had no images on the participant's response sheets (see Appendix 5). Ethical Procedure:
Before the experiment started, the participants were clearly told that they were allowed to leave the experiment at any time. Everything in our procedure was analyzed to ensure that no harm is done to any participant. Whether that is physical or psychological harm, no participant should experience neither.