Who were the four major sex researchers?
Richard von Krafft-Ebing
Sigmund Freud
Havelock Ellis
Alfred Kinsey
Which theories are they known for? Explain the theories.
How have they contributed in and advanced the field of sex research?
Do you think they were addressing the most fundamental questions about sex and sexuality through their research?
Do you think the fundamental questions have changed with changing times and can these theories be extended to accommodate changing sexual behavior?