Ahmed Conducts a Study to Test the Effectiveness of a Drug

question 15

Multiple Choice

Ahmed conducts a study to test the effectiveness of a drug. He surveys the clients twice-once at intake and then six months later. He finds that the drug was overall effective, but approximately 55 percent of the original sample stopped using the drug. Therefore, he does not have posttest data for them. In this case, what is likely to be an alternative explanation for the results obtained by Ahmed?

• A)Maturation
• B)Mortality
• C)Statistical regression
• D)Diffusion of treatment

---

Definitions:

Cash Dividends

A redistributive payment of a portion of a company's earnings, made in cash, to its shareholders.

Stockholders' Equity

The residual interest in the assets of a corporation after deducting liabilities, equal to the share capital plus retained earnings.

Premium

An additional amount over the normal cost, or the portion of insurance payments above the cost of the insured risk.

Discount

A reduction applied to the usual cost of goods or services, or in finance, an amount deducted from the face value of a bill of exchange or loan.