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Internal Validity Is Threatened When Subjects in the Control Group

question 27

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Internal validity is threatened when subjects in the control group modify their behavior to compensate for not receiving the experimental treatment. What is this called?


Definitions:

Fungi

A kingdom of non-photosynthetic organisms that includes molds, yeasts, and mushrooms, characterized by their chitinous cell walls and absorption of nutrients from the environment.

Gene Pool

The complete set of unique alleles that would be found within every individual of a particular population or species.

Adaptations

Characteristics or traits that have evolved through natural selection, enabling organisms to survive and reproduce in specific environments.

Natural Selection

The process by which heritable traits that make it more likely for an organism to survive and successfully reproduce become more common in a population over successive generations.

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