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

posted by Helmut Homepage – Vienna, Austria, 2017-12-26 13:22 (2284 d 06:51 ago) – Posting: # 18084
Views: 33,594

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 🖖🏼 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, 1,636 registered users;
92 visitors (0 registered, 92 guests [including 7 identified bots]).
Forum time: 20:13 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