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Which is an example of a longitudinal study? A researcher samples a population and assigns one group to stop smoking another group to exercise.

Which is an example of a longitudinal study? A researcher samples a population and assigns one group to stop smoking another group to exercise. A researcher samples a population and assigns one group to exercise and one group to no exercise. OA researcher samples a population of cancer survivors and studies the long-term effect of exercise on health benefits. OA researcher samples a population of cancer survivors who smoke and assigns one group to stop smoking and checks the 5-year survival rate.

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