Dr Sardonicus Learned of a Woman Whose Tongue Turned a Bright

Multiple Choice

Dr. Sardonicus learned of a woman whose tongue turned a bright shade of green whenever she felt stressed. Although this is a rare event in the general population, Dr. Sardonicus nonetheless interviewed the woman at great length and made detailed observations about her behavior. Dr. Sardonicus used _____ to gather data.

A) averaging
B) the case method
C) random sampling
D) the law of large numbers