0.95 or 1.05 [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2018-10-10 15:41 (1996 d 02:54 ago) – Posting: # 19428
Views: 24,910

Hi Oleg,

❝ […] can you explain your message to my colleagues in russian here


Interesting thread (as far as [image] translate took me). IIRC, some posters were not sure whether to use an assumed T/R-ratio of 0.95 or 1.05. Have a look at this post and that one. In short, if you assume a 5% difference but are not (very!) sure about the direction of the deviation (lower or higher than 100%), a study powered for 0.95 will always be sufficiently powered for 1.05 as well but not the other way ’round.

Dif-tor heh smusma 🖖🏼 Довге життя Україна! [image]
Helmut Schütz
[image]

The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes

Complete thread:

UA Flag
Activity
 Admin contact
22,957 posts in 4,819 threads, 1,638 registered users;
87 visitors (0 registered, 87 guests [including 8 identified bots]).
Forum time: 17:36 CET (Europe/Vienna)

Nothing shows a lack of mathematical education more
than an overly precise calculation.    Carl Friedrich Gauß

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5