Because of the manner in which what type of controls are identified, investigators are usually assured that they come from the same base population as the cases do?
A) Dead controls
B) Population controls
C) Hospital or clinic controls
D) Friend, spouse, and relative controls

Question

Quizplus · Accepted Answer

Population controls are selected from the same base population as the cases, ensuring that they are representative of the population from which the cases arise.

Because of the Manner in Which What Type of Controls