Which of the Following Is Not a "Control" in an Experimental

question 20

Multiple Choice

Which of the following is not a "control" in an experimental procedure?

• A) a placebo
• B) a known standard of comparison
• C) a normal group
• D) an experimental group
• E) a "zero"-value group

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Definitions:

Marine Mammal Protection Act

A 1972 U.S. law aimed at protecting marine mammals, prohibiting their harassment, hunting, capturing, or killing.

Rivers And Harbors Act

A United States federal law enacted in 1899, regulating the development and management of the nation's waterways to protect navigable waters and prevent obstructions.

Endangered Species Act

A U.S. law enacted in 1973 aimed at protecting species threatened with extinction.

Price Elasticity

The measure of how much the quantity demanded or supplied of a good changes in response to a change in its price.