Researchers Using a Longitudinal Study Design Observe

question 193

Multiple Choice

Researchers using a longitudinal study design observe:

• A) a single participant over the course of his or her lifetime.
• B) the same group of individuals on many occasions over a long period of time.
• C) two groups of demographically similar participants with the same condition over a long period of time.
• D) multiple groups of participants with the same condition at a single point in time, with each group being from a different age range.

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Definitions:

Kidneys

Bean-shaped organs that filter waste products from the blood, regulate fluid balance, and maintain electrolyte balance.

Bone Marrow

The soft, spongy tissue inside bones where blood cells are produced.

Stem Cells

Undifferentiated biological cells that can differentiate into specialized cells and can divide to produce more stem cells.

Blood Cells

Cells that circulate in the bloodstream, comprising red blood cells, white blood cells, and platelets.