Bioequivalence and Bioavailability Forum

Power at the limits of the acceptance range [Software]

posted by Helmut  – Vienna, Austria, 2010-09-28 19:50 (5321 d 04:25 ago) – Posting: # 5944
Views: 5,925

Dear J. Detlor!

❝ It should probably be mentioned that with a 20% difference it is very likely your power won't be any where near a level that is acceptable.

That’s an euphemism.
At the borders of the acceptance range, power is exactly alpha (or 5 % in the common setting) – by definition. I guess Weirddude (what a nick!) was copypasting from pre-Schuirmann’s ages (1987) - the infamous “Power Approach”… You can give it a try with D. Labes’ package PowerTOST for R. Don’t try that what standard software – most likely you would get an error at it’s best.

—
Dif-tor heh smusma 🖖🏼 Довге життя Україна! 
Helmut Schütz


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Science Quotes

Complete thread:

• Power Calculation of 2x2 crossover design (SAS) weirddude100 2010-09-21 18:13 
  • Power Calculation of 2x2 crossover design (SAS) jdetlor 2010-09-21 19:14
    • Power at the limits of the acceptance rangeHelmut 2010-09-28 17:50
      • Power at the limits of the acceptance range jdetlor 2010-09-28 18:37
        • Power at 1.20 Helmut 2010-09-28 18:57
          • Power at 1.20 jdetlor 2010-09-28 20:28
            • The Abuse of Power Helmut 2010-09-28 22:33
  • Power Calculation of 2x2 crossover design (SAS) d_labes 2010-09-27 08:51