Which Type of Experiment Separates Subjects into Groups That Are

question 55

Multiple Choice

Which type of experiment separates subjects into groups that are similar but differ in ways that might affect the outcome of the experiment?

• A) Rigorously controlled design
• B) Randomized block design
• C) Completely randomized design
• D) Matched pairs design

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Definitions:

Sodium Chloride

The chemical name for table salt, a compound with the formula NaCl, widely used as a condiment and preservative.

Sodium

A soft, silver-white, highly reactive metal belonging to the alkali metal series in the periodic table, denoted by the symbol Na.

Calcium Carbonate

A white, insoluble solid (CaCO3) occurring naturally as chalk, limestone, marble, and forming the shells of sea creatures.

Combustion

A chemical reaction that occurs between a fuel and an oxidant, producing heat and often light; commonly known as burning.