What is randomization?

What is randomization?

• A. the process of doing things in an unsystematic or random way.
• B. a method of systematically assigning participants to groups based on preexisting criteria.
• C. a measure of how spread out scores are in a dataset.
• D. a technique used to rank order data from lowest to highest.

Answer: (A)

Randomization is about doing things by chance rather than following a fixed pattern. In research, that means assigning participants to groups so each person has an equal chance of being in any group, which helps create comparable groups and reduces bias from confounding factors. The option describing actions in an unsystematic or random way best captures this idea. The other choices describe systematic assignment, a measure of dispersion, or ranking data, which are not what randomization refers to.

Randomization is about doing things by chance rather than following a fixed pattern. In research, that means assigning participants to groups so each person has an equal chance of being in any group, which helps create comparable groups and reduces bias from confounding factors. The option describing actions in an unsystematic or random way best captures this idea. The other choices describe systematic assignment, a measure of dispersion, or ranking data, which are not what randomization refers to.