Alexandra Is Conducting a Study on Math Achievement and Wants

question 48

Multiple Choice

Alexandra is conducting a study on math achievement and wants to collect a sample representative of minority students. She goes to St. Louis inner-city schools because she knows there are a lot of racial and ethnic minorities in these schools. Alexandra is illustrating which of the following?

• A) Quota sampling
• B) Purposive sampling
• C) Convenience sampling
• D) Systematic sampling

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Definitions:

Metarterioles

Small blood vessels that directly link arterioles with veinules.

Arterioles

Small branches of arteries that lead into the capillaries and regulate blood flow and pressure through the constriction and dilation of their walls.

Venules

Small veins that allow blood to return from the capillary beds to the larger blood veins.

Tricuspid Valve

A valve in the heart that lies between the right atrium and the right ventricle, preventing backflow of blood when the heart contracts.