________ Refers to an Extraneous Variable Involving Changes in the Measuring

question 25

Multiple Choice

________ refers to an extraneous variable involving changes in the measuring instrument or in the observers or scores themselves.

• A)Instrumentation
• B)Statistical regression
• C)Selection bias
• D)None of the above

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Definitions:

Wave-cut Notches

Erosional features formed at the base of cliffs by the action of ocean waves.

Coral Reefs

diverse underwater ecosystems held together by calcium carbonate structures secreted by corals.

Seawall

A man-made structure built along coasts to prevent erosion and flooding from the sea, often made of concrete, rocks, or other durable materials.

Jetty

An engineering structure built from the shore into a body of water to redirect current or tide, for example, to protect a harbor.