Actually, it does say that: One estimated that the so-called effect size (a measure of statistical significance) in placebo groups had nearly doubled over that time.
On Sat, Apr 20, 2013 at 1:18 PM, John Berry <berry.joh...@gmail.com> wrote: > I said that the placebo effect had about doubled in effectiveness over > what it had been. > Someone asked for the source. > > I am sure a better search of google will turn up more info on that, but > here is an article about it getting more effective without (I think) > mentioning a doubling: > > http://www.wired.com/medtech/drugs/magazine/17-09/ff_placebo_effect?currentPage=all > > > John > >
