Which of the following would be an example of selection bias?
A) volunteers
B) random assignment to experimental and control groups
C) matching of experimental and comparison groups
D) making sure that the quotas are the same for the experimental and comparison groups with respect to important variables

Question

Quizplus · Accepted Answer

Selection bias occurs when the participants in a study are not representative of the larger population from which they were drawn. Volunteers, who choose to participate in a study, may not be representative of the general population, leading to selection bias.

Which of the Following Would Be an Example of Selection