Which of These Statements Is the Best Description of a Variable

question 9

Multiple Choice

Which of these statements is the best description of a variable?

• A) A variable is something the researcher believes is irrelevant to the research outcome.
• B) A variable is something that can have only one value.
• C) A variable is something that can have more than one value or score.
• D) A variable is a scientific statement of observation.

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Definitions:

Myelin

A fatty substance that surrounds and insulates nerve fibers, increasing the speed at which electrical impulses are conducted.

Conduction Speed

The rate at which an electrical impulse travels along a nerve or muscle fiber.

Autoimmune Disease

Illness resulting from the loss of the immune system’s ability to discriminate between foreign pathogens in the body and the body itself; abnormal immune response by the body against substances and tissues normally present in the body.

Genetic Risk Factors

Hereditary elements that increase the likelihood of developing certain diseases or conditions.