In an Experiment, Subjects Are Put into Two Categories According

question 14

Multiple Choice

In an experiment, subjects are put into two categories according to sex, and then each subject is randomly assigned a treatment . This is an example of...

• A) randomized blocking
• B) gender bias
• C) confounding
• D) observational studies

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Definitions:

Cotton

A soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of cotton plants of the genus Gossypium.

Export

The act of sending goods or services from one country to be sold or traded in another.

Westward Migration

The movement of people westward across the United States, particularly notable during the 19th century, often for the purpose of land acquisition and settlement.

Plantation Economy

An economic system historically associated with the large-scale agricultural estates that specialized in cash crops, reliant on slave or cheap labor, primarily found in the Americas.