A Threat to Internal Validity in Which Extreme Scores,upon Retesting,tend

question 23

Multiple Choice

A threat to internal validity in which extreme scores,upon retesting,tend to be less extreme is called

• A)a time-series confound.
• B)a single-group effect.
• C)regression to the mean.
• D)none of the options is correct

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Definitions:

Peripheral Nervous System

The part of the nervous system outside the brain and spinal cord, including the nerves and ganglia, responsible for transmitting information to and from the central nervous system.

Somatic Nervous System

The part of the peripheral nervous system associated with the voluntary control of body movements through the action of muscles.

Central Nervous System

The central nervous system (CNS) is comprised of the brain and spinal cord, serving as the primary processing center for the entire nervous system, and is responsible for receiving, processing, and coordinating information throughout the body.

Parasympathetic Nervous System

Part of the autonomic nervous system that promotes relaxation, digestion, and nutrient absorption, counterbalancing the sympathetic nervous system.