Which of the Following Is an Example of an Extraneous

question 6

Multiple Choice

Which of the following is an example of an extraneous variable?

• A) A new strength training program
• B) A diet intervention
• C) Extra steps added by those who lost weight in an obesity study
• D) Aerobic fitness outcome measures in a cardiac rehab program

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Definitions:

Marginal Product

The additional output produced by employing one more unit of a particular input, holding other inputs constant.

Wage

A fixed regular payment, typically paid on a daily or weekly basis, made by an employer to an employee, especially to manual or unskilled workers.

Rental Rate

The cost associated with leasing a particular commodity, property, or piece of equipment per unit time.

Marginal Product

The extra production resulting from the increase of a particular input by one unit, assuming all other factors remain constant.