In a Laboratory, Smokers Are Asked to "Drive" Using a Computerized

question 99

Multiple Choice

In a laboratory, smokers are asked to "drive" using a computerized driving simulator equipped with a stick shift and a gas pedal. The object is to maximize the distance covered by driving as fast as possible on a winding road while avoiding rear-end collisions. Some of the participants smoke a real cigarette immediately before climbing into the driver's seat. Others smoke a fake cigarette without nicotine. You are interested in comparing how many collisions the two groups have. In this study, the independent variable is __________

• A) the use of nicotine.
• B) the use of a driving simulator.
• C) the number of collisions.
• D) the driving skills of each driver.

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Definitions:

Units of Output

The quantity of goods or services produced by an entity in a given period of time.

Marginal Cost

The cost associated with producing an additional unit of a product or service.

Diminishing

Refers to a reduction or decrease over time.

Marginal Product

Marginal product refers to the additional output resulting from using one more unit of a production input, holding all other inputs constant.