Many observational studies have linked consumption of a diet rich in Vitamin E with a lower rate of cardiovascular disease. In the Women's Health Study, "a group of 39,876 apparently healthy US women aged at least 45 years were randomly assigned to receive vitamin E (600 IU), aspirin, or placebo. .. and were followed for an average of 10.1 years." The study did not find any differences in cardiovascular events that could be attributed to Vitamin E. Consider the following four statements. Select the ones you agree with, based on the information given. The experiment could easily have reached the wrong conclusions due to confounding - people who eat vitamin rich foods probably have lifestyles that are different in other ways, too. The observational studies could easily have reached the wrong conclusions due to confounding - people who eat vitamin rich foods probably have lifestyles that are different in other ways, too. The experiment confirmed the results of the observational studies. It's possible that the results of the experiment would have agreed with the observational studies, if the experiment had studied a different population. Previous No new data to save. Last checked at 5:19pm Submit Quiz