Both the Researchers and the Participants in a Memory Study

question 250

Multiple Choice

Both the researchers and the participants in a memory study are ignorant about which participants have actually received a potentially memory-enhancing drug and which have received a placebo.This investigation involves the use of

• A) naturalistic observation.
• B) random sampling.
• C) the double-blind procedure.
• D) replication.

---

Definitions:

Supply Curve

A graphical representation showing the relationship between the price of a good and the quantity of the good that producers are willing to sell, holding other factors constant.

Interest Rates

The percentage charged by a lender to a borrower for the use of assets, typically expressed as an annual percentage of the principal.

Loanable Funds Theory

An economic theory that suggests the market interest rate and the quantity of loanable funds are determined by the demand and supply of credit.

Interest Rates

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