Which of the Following Statements About the Effectiveness of Therapies

question 27

Multiple Choice

Which of the following statements about the effectiveness of therapies is true?

• A) People who receive therapy are better off than 75% of people in the non-treatment control group.
• B) Therapy is effective in the short term, but tends to wear off in about 6 months.
• C) It is very difficult to study the effectiveness of therapeutic outcomes because of patient confidentiality.
• D) People in therapy improve about one-third of the time.

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Definitions:

Air

The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.

Dysrhythmia

An irregularity in heart rhythm; also called arrhythmia.

Cardiac Output

The product of heart rate and stroke volume, measured in liters per minute; the amount of blood that is pumped by the heart in 1 minute.

Ventricular Fibrillation

A life-threatening heart rhythm that results in a rapid, erratic heartbeat, preventing the heart from pumping blood effectively.