At 1:14 PM -0500 3/2/06, [EMAIL PROTECTED] wrote:
BTW, it doesn't surprise me that the drugs don't do better than placebo either. It's possible that nothing, including placebo, worked at all. To evaluate placebo, we need a no-treatment control group for comparison, something that many placebo controlled studies don't have.
Not to mention a _real_ placebo -- one whose side effects are not discriminable from those of the treatment drugs. It can be hard to do a _real_ double blind study!
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