Purpose of the study? [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2020-09-30 18:08 (299 d 07:01 ago) – Posting: # 21953
Views: 1,190

[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 🖖
Helmut Schütz
[image]

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

Complete thread:

Activity
 Admin contact
21,589 posts in 4,512 threads, 1,530 registered users;
online 14 (0 registered, 14 guests [including 2 identified bots]).
Forum time: Tuesday 01:10 CEST (Europe/Vienna)

The great tragedy of Science – the slaying
of a beautiful hypothesis by an ugly fact.    Thomas Henry Huxley

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