How Are Threats to Validity Affected When Studies Are Conducted

question 19

Multiple Choice

How are threats to validity affected when studies are conducted in real-world settings?

• A) Threats to both internal and external validity are increased.
• B) Threats to both internal and external validity are decreased.
• C) Threats to internal validity are decreased, whereas threats to external validity are increased.
• D) Threats to internal validity are increased, while threats to external validity are decreased.

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Definitions:

Canalized

Refers to a trait that follows a strictly defined path, regardless of most environmental and genetic variations.

Environmental Changes

Alterations in the surrounding conditions, whether natural or man-made, that can impact ecosystems and human societies.

Amniocentesis

A medical procedure used in prenatal diagnosis of chromosomal abnormalities and fetal infections, where a small amount of amniotic fluid is sampled from the amniotic sac surrounding a developing fetus.

CVS

Short for Chorionic Villus Sampling, a prenatal test that involves taking a sample of the chorionic villi to test for fetal abnormalities.