Professor Peña Is Interested in Studying the Development of a Sense

question 150

Multiple Choice

Professor Peña is interested in studying the development of a sense of humor. She collects data from groups of 6-year-olds, 16-year-olds, 26-year-olds, and 46-year-olds. What type of research design is Professor Peña using?

• A) cohort design
• B) longitudinal design
• C) behavior genetics design
• D) cross-sectional design

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Definitions:

Endothelial Cells

Cells that constitute the lining of the inner surfaces of lymphatic and blood vessels, creating a barrier between the blood or lymph flowing within the lumen and the exterior of the vessel wall.

Capillary

The smallest blood vessels in the body's circulatory system, connecting arterioles to venules and facilitating the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and tissues.

Arteriole

Minute artery with all three tunics that transports blood to a capillary.

Venule

Minute vein, consisting of endothelium and a few scattered smooth muscles, that carries blood away from capillaries.