Which of the Following Represents a Double-Blind Study

question 22

Multiple Choice

Which of the following represents a double-blind study?

• A)The test group knows whether they are receiving a placebo or the actual treatment, and so do the researchers.
• B)The test group does not know whether they are receiving a placebo or the actual treatment, but the researchers do.
• C)The test group knows whether they are receiving a placebo or the actual treatment, but the researchers do not know until all the data are collected.
• D)Neither the test group nor the researchers know whether the test group is receiving a placebo or the actual treatment until all the data are collected.

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Definitions:

SEC

The Securities and Exchange Commission, a U.S. regulatory agency responsible for enforcing federal securities laws and regulating the securities industry.

After-tax Returns

The profit realized from an investment after all applicable taxes have been subtracted.

Portfolio Turnover

A measure of how frequently investments are bought and sold within a portfolio during a specified period of time.

Malkiel's Study

An academic research work that analyzes market trends, investor behavior, and the efficiency of financial markets, particularly known for supporting the random walk hypothesis.