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

question 62

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 dependent 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:

Cross-sectional

A research design that analyzes data from a population, or a representative subset, at one specific point in time.

Longitudinal

A study setup where the same factors are observed multiple times over periods that can be either brief or extended.

Prospective Cohort

A study that follows a group of similar individuals over time to determine how their exposures affect their outcomes.

Cross-sectional

A study method that observes and analyzes data from either an entire population or a selected representative segment at a particular moment.