A team of psychology students would like to expose their classmates to an embarrassing experience in order to gather data for their term project. Their instructor has asked them to read the ethical guidelines published by the American Psychological Association. She wants them to understand that

that they must obtain consent of the participants after informing them of the procedure.        

Explanation:

In research, it is important for a researcher to abide by the ethical guidelines published by the American Psychological Association in the use of human subjects in research. One of these key guideline is the obtaining of an informed consent from the research subject. Informed consent is a voluntary agreement to participate in research after the subject have been briefed about the details of the research and the risk therein. It is unethical to conduct research on a subject without first seeking their consent.

Their instructor wants them to know the importance of informed consent in research.