What Is One of the Major Reasons That Psychologists Use

question 6

Multiple Choice

What is one of the major reasons that psychologists use operational definitions?

• A)to comply with legal requirements
• B)to identify all the extraneous variables
• C)so that effects can be measured
• D)to explain research results so that nonpsychologists can understand

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Definitions:

Rule of 70

A simple way to estimate the number of years it will take for an investment to double in size, calculated by dividing 70 by the annual rate of growth.

Interest

The cost of borrowing money, expressed as a percentage, paid by the borrower to the lender for the use of the lender's money.

Present Value

Today's value of a future monetary amount or cash flow series, calculated with a designated rate of return.

Interest Rate

The cost of borrowing money or the return on investment for savings, usually expressed as a percentage.