Internal Validity Is Threatened By

question 31

Multiple Choice

Internal validity is threatened by:

• A) the qualifications of the researcher.
• B) the random assignment of participants.
• C) the experimental conditions of the study.
• D) the presence of demand characteristics.

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Definitions:

External Cost

A cost that affects parties who are not directly involved in a transaction, leading to negative outcomes like pollution that are not reflected in market prices.

Coal-Powered

Refers to machines, plants, or devices that operate or are fueled by coal.

Electrical Generator

A device that converts mechanical energy into electrical energy, typically through rotating a coil within a magnetic field.

Externality

A cost or benefit arising from an economic activity that affects third parties who did not choose to incur that cost or benefit.