Randomization Strengthens an Experimental Study in Which of These Ways

question 12

Multiple Choice

Randomization strengthens an experimental study in which of these ways?

• A) It reduces the risk that a subject will be harmed by participation in the study.
• B) It ensures that the experimental group and the control group have the same number of participants.
• C) It allows the study to proceed without the researcher knowing which group is the experimental treatment group.
• D) It increases the likelihood that the differences in outcomes between the groups are not related to chance alone.

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Definitions:

Marginal Cost

The boost in complete costs associated with creating one more unit of a product or service.

Private Good

A product that is excludable and rival in consumption, meaning its use is limited to the purchaser and it cannot be shared without diminishing availability to others.

Rivalry

Competition or contention between two or more parties for a goal that only one can attain.

Excludability

A characteristic of a good according to which it is possible to prevent people who have not paid for the good from consuming it.