3 ms·
How would you design such a trial? You cannot force people to undergo a colonoscopy. But if you just compare the people who SELF SELECTED themselves to undergo
by oldgradstudent 4y ago
How would you design such a trial? You cannot force people to undergo a colonoscopy.
But if you just compare the people who SELF SELECTED themselves to undergo the trial then you introduce the biases that you attempted to overcome by using a randomized controlled trial.