Which of the following strategies can be used to control for confounding in the design phase of an experiment? Randomizing study subjects Stratifying for different levels of the confounder Matching subjects Restricting inclusion criteria Both a and b Choices a, c, and d All of the above
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Randomizing study subjects: This helps to control for confounding by ensuring that each subject has an equal chance of being assigned to any group in the study. This helps to balance the distribution of confounders across groups. So, this is a valid strategy. Show more…
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