Trade-off between internal validity and external validity

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Question

Researchers often speak of the trade-off between internal validity and external validity. Imagine you are conducting an experimental study examining the ability of a new vaccine to prevent cancer. Please use this specific example to answer the following

1. Define the terms internal validity and external validity, using the above research scenario to illustrate your answer

2. Describe the specific procedures that the researcher in this scenario should employ to maximize internal validity and external validity. Use the specifics from the above research scenario to illustrate your answer

3. Explain what researchers mean by the "trade-off between internal validity and external validity, and indicate which of these you would prioritize in this specific research scenario. Justify your answer.

Reference no: EM133886241

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