Stop estimating post hoc power! [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2017-12-26 12:22 (951 d 23:46 ago) – Posting: # 18084
Views: 27,102

Hi kms,

» I'm getting surprising results always that I'm taking sample size with 80% power and by coming to the results always 98 Power it is reaching....How it is possible always?

If the irrelevant post hoc power is always 98%, I suspect a flaw in the software (or SAS macro).
If it is always higher than the one used in sample size estimation it may be a miscalculation – ineradicably “popular” in Indian CROs (see this post). Revise your procedures.

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
20,964 posts in 4,373 threads, 1,460 registered users;
online 12 (0 registered, 12 guests [including 5 identified bots]).
Forum time: Tuesday 13:09 CEST (Europe/Vienna)

My doctor gave me six months to live,
but when I couldn’t pay the bill
he gave me six months more.    Walter Matthau

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