Exact (Owen’s Q) [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2021-10-20 13:26 (339 d 10:52 ago) – Posting: # 22648
Views: 1,583

Hi Imph,

» Thank you very much for your answer.


» From where I am, I was unable to access dileti's publications. Can you please help me get them.

Check your inbox. Two points:
  1. The paper contains tables for certain CVs, T/R-ratios, and target power.
    If you want something else, don’t be tempted to interpolate. Power curves are highly nonlinear and hence, interpolation is not that easy.
  2. Although the exact formula is given, calculating the definite integrals of the bivariate noncentral t-distribution is not trivial.
Why do you want to re-invent the wheel? PowerTOST is [image] Open Source (licensed under GPL-3), comes at no cost, was used in numerous publications, textbooks, and even by the [image]… :-D

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