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Bias and Confounding in Epidemiological Studies
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Which of the following is an example of selection bias?
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💡 Explanation:
Selection bias occurs when the participants in a study are not representative of the population of interest, leading to biased results. Including only participants who have a certain disease in a study of the risk factors for that disease is an example of selection bias, as it excludes participants who do not have the disease and may have different risk factors.