Then at a certain point, there will be a cross-over and the group who received the real medicine will now get the placebo and vice versa. This will help us figure out if the medication is really working, or if there is a placebo-effect (where the medicine is only working because everyone gets a little better when thy think they are getting a really good medicine because the mind is very powerful at making us feel a little better, even without any real medicine).
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