Some of the unethical research studies that led to the creation of ethics laws for research and IRBs:
(1932-1973) Tuskegee experiments. U.S. Public Health researchers intentionally withheld penicillin from 400 black males who were unaware of their positive diagnosis of syphilis. By the end of the study 28 men had died, their wives were now infected with syphilis, men were disabled from the disease, and their children had congenital disorders. In 1973 the study was stopped due to a federal investigation and the federal regulation of research was a direct result.
(1962) Thalidomide: Kefauver-Harris Bill was passed to ensure greater drug safety as a result of the 12,000 thalidomide babies born missing limbs. This drug was given to pregnant women to control nausea, however, the women were not informed this was an experimental drug nor about the risks involved.
(1963) Stanley Milgram: obedience study and electric shock. Investigate power dynamics due to the common response from soldiers in WWII, Korea, Vietnam that they did what they did because they were just “following orders”. Researchers set up a fake electric shock board. Participant A sat in one room and would read questions to Participant B in a separate room. If participant B got a question wrong, participant A would push a button to shock them. Participant A didn't know the shock board was fake nor that the person responding to the questions was an actor. The participant delivering the electric shock would keep going because the researcher was standing there telling them they had to do it. Video:
https://www.simplypsychology.org/milgram.html(related to the “following orders” defense in the 2003 Abu Ghraib prisoner abuse/torture/murder scandal in Iraq at the hands of U.S. soldiers.)
Stanford Prison experiments (1971) investigate the psychological effects of perceived power between prisoners and prison officers. It was conducted at Stanford University led by psychology professor Philip Zimbardo using college students. In the study, volunteers were randomly assigned to be either "guards" or "prisoners" in a mock prison.
(1989) Arizona State University and the University of Arizona collected 400 blood samples from Havasupai tribal members for diabetes research, but those samples were used for unauthorized research on schizophrenia, eugenics, and DNA mapping. The researchers did not inform the Tribe. There are countless unethical research practices against Native peoples: sterilization of Lakota women, U.S. Air Force- giving radioactive Iodine to Alaska Natives, and too many more.