From a 2020 Progress Report, Approximately What Percentage of Americans

question 68

Multiple Choice

From a 2020 progress report, approximately what percentage of Americans visited the dentist during 2011?

• A) 32%
• B) 42%
• C) 52%
• D) 62%

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Definitions:

Masked Design

A research design in which participants do not know which treatment group they are in to prevent bias; also known as a blinded design.

Placebo

An inert or non-therapeutic substance given to a control group in clinical trials to assess the psychological impact of receiving a treatment.

Natural

Naturally occurring and not manufactured or created by human beings.

Biased

Showing an unfair preference or prejudice for or against something or someone.