Which is an example of a longitudinal study A researcher

Last updated: 3/31/2023

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 O A 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