The procedure that experimenters need to use to make sure that participants in both the treatment and control groups are not aware of the purpose of the experiment is known as the:
a) independent variable.
b) dependent variable.
c) random assignment.
d) statistical law.

The correct answer is option c) Random assignment

Explanation:

The procedure that experimenters need to use to make sure that participants in both the treatment and control groups are not aware of the purpose of the experiment is known as the random assignment.

Random assignment means that each group, either a control group or experimental, has the equal opportunity to be assigned to any of the assignments being held. There is no discrimination or preference included.

true

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