If an experiment is designed in a way that both of the experimental subjects and the person who interact with them don't know which treatment each subject received, then the experiment is:
A) randomized.
B) well controlled.
C) double-blind.
D) not controllable.

Question

Quizplus · Accepted Answer

A double-blind experiment is one in which both the subjects and the person interacting with them (such as the researcher) are unaware of which treatment each subject received. This helps to eliminate bias in the experiment and ensures that the results are more reliable. Randomization can also be a part of a double-blind experiment, but it is not sufficient on its own to ensure that the experiment is well-controlled. The experiment can still be controlled even if the person conducting it doesn't know which treatment each subject received, so the answer is not D.

If an Experiment Is Designed in a Way That Both