Two Matched Groups Which of These Designs Does the Best

question 64

Multiple Choice

Two Matched Groups Which of these designs does the best job of controlling extraneous subject variables?

• A)experimental group-control group
• B)multiple independent groups
• C)two experimental groups
• D)two matched groups

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Definitions:

Resting Potential

The electrical potential of a neuron when not stimulated or involved in passage of an impulse, typically around -70mV.

Axon

a part of a neuron that conducts impulses away from the cell body towards other neurons or muscles.

Electrical Charge

A fundamental property of matter that exists in either a positive or negative state and causes it to experience a force when placed in an electromagnetic field.

All-Or-None Law

A principle that states that the strength of a response of a nerve cell or muscle fiber is not dependent on the strength of the stimulus; if a stimulus is above a certain threshold, a nerve or muscle fiber will fire.