If You Have a Multigroup Design with 12 Groups, Roughly

question 92

Multiple Choice

If you have a multigroup design with 12 groups, roughly what is the minimum number of participants you should have for reasonable power in your study?

• A) 250
• B) 360
• C) 470
• D) 660

---

Definitions:

Urine Volume

The total amount of urine excreted by the kidneys in a given time period, which can indicate hydration levels or kidney function.

Afferent Arteriole

A small artery that carries blood toward the capillaries of the glomerulus in the kidney, initiating the process of blood filtration.

Blood Pressure

The force exerted by circulating blood on the walls of blood vessels, essential for maintaining bodily functions.

Renin

An enzyme secreted by the kidneys that plays a crucial role in the body's renin-angiotensin system (RAS), affecting blood pressure and fluid balance.