Which Purpose Is Served by the Inclusion of a Control

question 10

Multiple Choice

Which purpose is served by the inclusion of a control group in a randomized controlled trial (RCT) ?

• A) Distributing known and unknown factors equally
• B) Protecting against the occurrence of selection bias
• C) Ensuring similarity of experimental and control groups
• D) Allowing for comparison of experimental and control groups

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Definitions:

Unemployment Rate

Number of unemployed divided by the labor force.

Property Income

Income received by owners of property for the use of their property, such as rent.

Women

Female human beings, often referred to in contexts relating to gender-specific experiences, roles, rights, and social contributions.

Poverty Rate

The percentage of the population that lives below the national poverty line, indicating the proportion of individuals or families with income levels below what is necessary for basic living conditions.