Some of the Studies Conducted Before the 1970s, Like the Tuskegee

Question 26
Multiple Choice

Some of the studies conducted before the 1970s, like the Tuskegee Syphilis Study and Milgram's obedience study, could not be replicated today, because of: A) stricter ethical guidelines. B) loss of confidentiality. C) cultural standards that discourage research. D) stricter environmental guidelines.