In a Carefully Controlled Experiment, the Only Possible Cause for Any

question 645

Multiple Choice

In a carefully controlled experiment, the only possible cause for any effect noted in the dependent variable is the

• A)independent variable.
• B)extraneous variable.
• C)random assignment.
• D)random selection.

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Definitions:

Suprachiasmatic Nucleus

A tiny region of the brain in the hypothalamus responsible for controlling circadian rhythms.

Master Clock

Refers to the body's internal time-keeping system, located in the brain, that regulates circadian rhythms and sleep-wake cycles.

Pineal Gland

A small endocrine gland in the brain involved in the production of melatonin, a hormone that regulates sleep patterns.

Suprachiasmatic Nucleus

A tiny region in the brain's hypothalamus responsible for controlling circadian rhythms, essentially acting as the body's internal clock.