Bioequivalence and Bioavailability Forum • compromised power

compromised power [Power / Sample Size]

posted by daryazyatina – Ukraine, 2017-08-04 10:15 (2456 d 04:43 ago) – Posting: # 17663
Views: 18,563

Hi Helmut,

❝ To keep everything equal you should convert the standard deviation to the CV. Hence,

❝ se2CV(0.3)

You are wrote about converting the standard deviation to СV, but use the formula to convert the standard error to СV. I thought that the standard deviation and standard error are different parameters. Maybe I'm wrong.

Complete thread:

sample size in bioequivalence studies daryazyatina 2017-08-03 09:34 [Power / Sample Size]
- sample size in bioequivalence studies BE-proff 2017-08-03 09:55
  - sample size in bioequivalence studies daryazyatina 2017-08-03 10:08
- sample size in bioequivalence studies ElMaestro 2017-08-03 10:17
  - sample size in bioequivalence studies daryazyatina 2017-08-03 10:58
    - sample size in bioequivalence studies DavidManteigas 2017-08-03 12:40
      - sample size in bioequivalence studies daryazyatina 2017-08-03 13:46
      - Don’t use the formula by Chow, Shao, Wang! Helmut 2017-08-03 15:37
        
        Don’t use the formula by Chow, Shao, Wang! daryazyatina 2017-08-03 15:52
        Don’t use the formula by Chow, Shao, Wang! DavidManteigas 2017-08-03 16:12
        
        Don’t use the formula by Chow, Shao, Wang! Helmut 2017-08-03 16:33
        
        Don’t use the Book by Chow, Shao, Wang! d_labes 2017-08-16 16:01
    - compromised power Helmut 2017-08-03 16:04
      - compromised powerdaryazyatina 2017-08-04 08:15
        
        terminology Helmut 2017-08-04 12:41
        
        terminology daryazyatina 2017-08-16 10:12
        
        terminology Helmut 2017-08-16 18:54
- sample size in bioequivalence studies balinskyi 2018-06-03 12:58