No relationship between CVinter and CVintra [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2021-04-27 13:14 (54 d 18:50 ago) – Posting: # 22332
Views: 561

Hi Sridhar,

» can any one help how i convert inter subject CV to intra subject CV for sample size estimation.

[image]What do you mean by ‘convert’? It’s like saying ‘convert an apple to an orange’. Both are approximately spherical fruits, more or less sweet and of similar weight. However, they are exclusively distinct.

If you have a crossover study, both CVs are accessible. If you have a parallel design, you get only the total (aka pooled) CV (see this article). There is an infinite number of combinations of CVinter and CVintra which will give the same CVtotal.

Dif-tor heh smusma 🖖
Helmut Schütz

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

Complete thread:

 Admin contact
21,530 posts in 4,499 threads, 1,524 registered users;
online 12 (0 registered, 12 guests [including 8 identified bots]).
Forum time: Monday 08:04 UTC (Europe/Vienna)

Young man, in mathematics you don’t understand things.
You just get used to them.    John von Neumann

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