Describe the concept of a confounder and provide a real-world example.
Instruction: Explain what a confounder is and illustrate with an example from any field of interest.
Context: This question checks the candidate’s understanding of confounders and their ability to identify and explain how they can affect the outcomes of a study.
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Consider a study aiming to investigate the relationship between physical activity (independent variable) and the risk of developing cardiovascular disease (CVD) (dependent...