Some of the Major Threats of External Validity Are

question 14

Multiple Choice

Some of the major threats of external validity are:

• A) History, subject selection, and maturation.
• B) Maturation, testing, mortality, other factors.
• C) Subject selection, other factors.
• D) All of the above.
• E) None of the above.

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Definitions:

Antigens

Substances that the immune system recognizes as foreign or dangerous, triggering an immune response.

Antigens

Substances that, when introduced into the body, trigger an immune response primarily because they are recognized as foreign.

Antibodies

Proteins produced by the immune system to neutralize or destroy foreign substances, such as bacteria and viruses.

Inhibits Blood Clotting

Affects the body's ability to form blood clots, potentially delaying or preventing the clotting process.