Date:         Thu, 4 Sep 2003 07:53:16 +0200
Reply-To:     Wolfgang Deimel <deimel@POST.MED.UNI-MARBURG.DE>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Wolfgang Deimel <deimel@POST.MED.UNI-MARBURG.DE>
Subject:      Re: Tests of Equivalence
In-Reply-To:  <OFEF849826.EBA987B8-ON85256D96.00457C3E@ny.sanofi.com>
Content-type: text/plain; charset=US-ASCII

On 3 Sep 2003, at 8:39, Susie Li wrote:

> Are you comparing two "distributions"?

I'm testing two means on equivalence, i.e. the H1 is that they do NOT
differ, as opposed to standard testing logic (and standard tests)
where H1 is that they DO differ.
This is a standard procedure in pharmacology where a new (cheaper)
substance must just prove that it is equally efficient as the
standard substance, in other words that the outcome is not different
from that of the standard substance.

Regards,
Wolfgang Deimel



>
> Susie Li
> Sanofi-Synthelabo, Inc.
> 90 Park Ave
> New York, NY 10016
> (212)551-4385
> susie.li@us.sanofi.com
>
> __________________
>
>
> Colleagues,
>
> I'm interested in equivalence testing but I can't seem to find
> software that does the trick. I came across a SAS macro that performs
> testing of equivalence of two means (via tTest procedure), but that's
> it so far. Am I missing something? I'd like to perform equivalence
> tests for more than two means, and also for variances and
> correlations. I'd be grateful for tips on other SAS rescources /
> macros or whatever else there might be on the market to perform these
> tests.
>
> Regards,
> Wolfgang Deimel
>
>
>
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