The textbook notes that there is a trade-off between internal and external validity. Explain what this means, and provide an illustration of how a researcher might increase internal validity at the expense of external validity.

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The Answer of The textbook notes that there is a trade-off between internal and external validity. Explain what this means, and provide an illustration of how a researcher might increase internal validity at the expense of external validity.

The Textbook Notes That There Is a Trade-Off Between Internal