A Researcher Attempts to Evaluate the Impact of a Safety-Training

question 38

Multiple Choice

A researcher attempts to evaluate the impact of a safety-training program that is intended to increase the use of helmets by child bicyclists. About the same time that the training program takes place, the local news media runs a front-page story about a five-year old whose life was saved by wearing a helmet. This case most clearly illustrates the internal validity threat of:

• A)history.
• B)maturation.
• C)testing.
• D)statistical regression.

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Definitions:

Productivity Differences

Variations in the efficiency and effectiveness with which firms or economies turn inputs into outputs.

Human-Capital Theory

A concept in economics that views individuals' skills, knowledge, and experience as economic value, suggesting that investments in education and training can enhance productivity and earnings.

Discriminatory Practices

Actions or policies that treat an individual or group unfairly based on certain characteristics, such as race, gender, age, or sexual orientation.

Labor Markets

Marketplaces where employers find workers and workers find jobs, defined by the supply and demand for labor.