Purpose of the study? [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2020-09-30 20:08 (1155 d 01:06 ago) – Posting: # 21953
Views: 2,352

[image]Hi Ihababdallah,

❝ […] if a study design is 5x5 cross over trial, reference, 3 treatments, and placebo, and I would like to estimate the sample size ?


See the subject line. If you will tell us the purpose of the study, we may help.
What do you want to demonstrate? Equivalence of the treatments to the reference and superiority of all to placebo or what?

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
22,811 posts in 4,783 threads, 1,639 registered users;
11 visitors (0 registered, 11 guests [including 6 identified bots]).
Forum time: 20:15 CET (Europe/Vienna)

Every man gets a narrower and narrower field of knowledge
in which he must be an expert in order to compete with other people.
The specialist knows more and more about less and less
and finally knows everything about nothing.    Konrad Lorenz

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