When Experiments Are Used to Determine Whether Therapy Is Effective

question 416

Multiple Choice

When experiments are used to determine whether therapy is effective,

• A)it is not unusual for the control group to show some improvement, even without receiving therapy.
• B)the therapy can be deemed effective only if the experimental group shows more improvement than the control group.
• C)a waiting-list control group is used since it would be unethical to withhold treatment from someone who really needs therapy.
• D)all of these can occur.

---

Definitions:

Coordinated Motion

The ability of different parts of the body to move in a synchronized and efficient manner, often essential for performing complex physical activities.

Myelomeningocele Sac

A spinal defect present at birth where the backbone and spinal canal do not close before birth, leading to a sac protruding through the back.

Sterile, Moist, Nonadherent Dressing

A medical dressing designed to maintain a moist healing environment, not stick to the wound, and remain free of bacteria to promote healing.

Surgical Closure

The process of closing a wound or incision using sutures, staples, or adhesive methods following surgery.