Will Hopkins wrote:
>
> At 7:34 PM +0000 12/3/01, Jerry Dallal wrote:
> >Don't do one-tailed tests.
>
> If you are going to do any tests, it makes more sense to one-tailed
> tests.
If you're doing a 1 tailed test, why test at all? Just switch from
standard treatment to the new one. Can't do any harm. Every field
is littered with examples where one-tailed tests would have led to
disasters (harmful treatments missed, etc.) had they been used.
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