In Experimental Studies, the Variable of Interest

question 70

Multiple Choice

In experimental studies, the variable of interest

• A) is not controlled.
• B) is controlled.
• C) must be numerical.
• D) cannot be numerical.

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Definitions:

Radon Gas

Radon gas is a radioactive noble gas that is colorless, tasteless, and odorless, derived from the natural decay of uranium in soil, rock, and water.

Natural Source

An origin of materials or energy that is found in nature and not artificially created, such as sunlight, plants, minerals, or water.

Environmental Protection Agency

A U.S. federal agency responsible for the regulation and enforcement of laws aimed at protecting human health and the environment.

Elevated Radon Levels

Refers to higher concentrations of radon gas in the atmosphere or in buildings, which is hazardous to health due to its radioactive properties.