Which Threat to Internal Validity Occurs When Events That Occur

question 39

Multiple Choice

Which threat to internal validity occurs when events that occur before or during the experiment affect the relationship being studied?

• A) History
• B) Maturation
• C) Testing
• D) Instrumentation
• E) Mortality

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Definitions:

Prenatal Development

The process of growth and development within the womb from the formation of an embryo through to the development of a fetus until birth.

Central Nervous System

The Central Nervous System (CNS) is comprised of the brain and spinal cord, functioning as the main processing center for the entire nervous system, controlling thoughts, movements, and bodily functions.

Lanugo

Lanugo is fine, soft hair that covers the body of a fetus or a newborn as a form of insulation, which is usually shed before or shortly after birth.

Progesterone

A hormone produced in the ovaries, placenta, and adrenal glands that plays a key role in the menstrual cycle and maintaining pregnancy.