A Threat to Internal Validity Occurs Only If a Potential

question 21

Multiple Choice

A threat to internal validity occurs only if a potential design confound varies with the independent variable.

• A)haphazardly
• B)systematically
• C)spontaneously
• D)especially

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Definitions:

Nitrosonium Ion

A positively charged ion with the formula NO+, known for its role in organic nitrogen compound synthesis.

Secondary Amines

Organic compounds where a nitrogen atom is bonded to two carbon atoms, often represented as NHR2, where R denotes organic substituents.

N-Nitrosoamines

Organic compounds containing the functional group NNO, known for their roles as carcinogens.

Major Organic Product

The primary product of an organic reaction that is formed in the greatest yield.