A group of randomly selected subjects for a study that matches the population in terms of important characteristics such as age and sex is called __________.
A)volunteer bias
B)a representative sample
C)the experimental group
D)the control group

Question

Quizplus · Accepted Answer

A representative sample is a group of randomly selected subjects for a study that matches the population in terms of important characteristics such as age and sex. Volunteer bias refers to the tendency for a sample to be biased because it consists only of volunteers, who may not be representative of the overall population. The experimental group and control group are specific groups within an experiment, not necessarily related to the sampling method.

A Group of Randomly Selected Subjects for a Study That