A drug company is advertising a new drug that helps people recover from jet lag

Question

A drug company is advertising a new drug that helps people recover from jet lag faster. You are skeptical, so you conduct an experiment to test their claim. In your experiment, 100 people are flown from San Francisco to Tokyo. During the flight, half the participants are randomly given the drug company's new drug. The other half of the participants are given a placebo (i.e., sugar pill) during the flight. Six hours after they land, all participants are asked to rate how sleepy and disoriented they feel on a scale from 1 to 10. What scale of measurement was used for the DV?

Explanation / Answer

Correct Answer - Ordinal Scale

The scale of measurement used for the dependent variable is the ordinal scale. The ordinal scale measures nonnumerical concepts such as how motivated you feel or how sleepy how are. In the ordinal scale, the order of the values is important.

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