Longitudinal Studies of IQ Over the Life Span Have Shown

question 31

Short Answer

Longitudinal studies of IQ over the life span have shown that scores are stable until about the age of ____________________ when there are modest declines.

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Definitions:

SA Node

Sinoatrial node; the heart's natural pacemaker, located in the right atrium, it initiates the electrical impulses that dictate the heart rate.

Cardiovascular System

The body's system comprising the heart and blood vessels, responsible for circulating blood and oxygen throughout the body.

Electrical Shock

A sudden discharge of electricity through a part of the body, causing injury or potentially fatal effects depending on the voltage and duration of contact.

Steth/o

A prefix relating to the chest, often used in terms related to medical examination of the chest, e.g., stethoscope.