Box 2.

Studies of sexual behaviour

• Mass-Observation's “sex survey” in austere 1940s Britain¹⁰
• Kinsey's highly selective and unrepresentative tabulations in 1950s America²⁰,²¹
• Master and Johnson's physiological accounts of the male and female orgasm²²
• British national surveys of sexual attitudes and lifestyles in the 1990s and the early 21st century²³–²⁶