Voters Have Recently Decided to Have Fluoride Added to the City

question 6

Multiple Choice

Voters have recently decided to have fluoride added to the city water system. Epidemiologists now want to study the effect of fluoride on dental caries in this population. Which of the following would be conducted by the epidemiologists?

• A) Ecological study
• B) Double-blind study
• C) Community trial
• D) Screening

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Definitions:

Interchangeable Parts

Interchangeable parts are components that are made to specifications that ensure they are so nearly identical that they will fit into any assembly of the same type, reducing manufacturing complexity and allowing for easier repair of mechanical systems.

Labor Surplus

A situation in which the supply of workers exceeds the demand for their services, often leading to unemployment and lower wages.

Economic Depression

A long-term downturn in economic activity characterized by high unemployment, low consumer spending, and business failures.

Pre-Industrial Artisan

A skilled craftsperson who manually produces goods or provides services, traditionally working within a small-scale, labor-intensive process prior to industrialization.