Indicate Whether the Study Described Is an Observational Study or a Controlled

question 38

Multiple Choice

Indicate whether the study described is an observational study or a controlled experiment.
-A group of cancer patients is divided into two groups. One group is given a new drug to fight the side effects of chemotherapy and the other group is given a placebo. After three months they are asked to respond to a questionnaire about the frequency and severity of their side effects to see whether the new drug improved the overall negative side effects of chemotherapy.

• A) Controlled experiment
• B) Observational study

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Definitions:

Amortization

The method of distributing a loan across a sequence of consistent installments over a period.

Principal Balance

The remaining amount of money borrowed or invested, excluding any interest or fees.

Compounded Semi-annually

Interest on an investment or loan is calculated and added to the principal twice a year.

Amortization Schedule

A table detailing each periodic payment on an amortizing loan, showing amounts toward principal and interest and the remaining balance after each payment.