In Case-Control Research Design, Researchers Must Ensure That the Controls

question 12

Multiple Choice

In case-control research design, researchers must ensure that the controls are ______ when compared to the previous cases in all respects other than what they were exposed to.

• A) opposite
• B) similar
• C) obvious
• D) unexpected

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Definitions:

Electrically Charged

A condition of having an imbalance of electric charge, either positive or negative.

Resting Potential

The electrical charge across the neuronal membrane when the neuron is not actively transmitting signals.

Refractory Period

The time right after a stimulus when a nerve or muscle cannot respond to additional stimulation.

Positive Charge

An electrical charge possessed by protons, which is opposite in sign to the charge carried by electrons.