A group of randomly selected subjects for a study that matches the population on 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 on important characteristics such as age and sex. This helps ensure that the results of the study can be generalized to the larger population. Volunteer bias refers to the idea that people who volunteer for a study may differ from the general population in important ways. The experimental group is the group in a study that receives the treatment being tested, while the control group is a group that does not receive the treatment and is used as a comparison group. Neither of these options relates specifically to matching the population on important characteristics.

A Group of Randomly Selected Subjects for a Study That