Subjects are said to be assigned randomly when

Subjects are said to be assigned randomly when

a. they are assigned to experimental and control groups from a sample which is representative of the larger population.
b. they each have an equal chance of being assigned to either the experimental or control group.
c. they are assigned to experimental and control groups so that the groups differ on some critical variable before the experiment begins.
d. neither the experimenter nor the subject knows whether the subject is in the experimental or control group.

If subjects are assigned randomly then they each have an equal chance of being assigned to any group.
Randomly assigned subjects have an equal chance of being in both groups and are not determined by a sample.
The groups should not differ because a random group has an equal chance of being experimental or control.
The subject's group is known but the chances of it being experimental or control are equal.


Science

Learn More Multiple Choice Question :