PiFace discussion

Welcome to the PiFace Discussion Group

This is intended to be a place where users may post questions and examples related to the sample-size software at http://homepage.stat.uiowa.edu/~rlenth/Power/. Currently this is an open group; anyone may post here. This will change if it becomes necessary. If you do post, please include informative subject lines and keywords.

Please understand that there is no guarantee of correctness of anything posted here. I do hope that users will comment on things that they believe is incorrect; and I likely will comment on some postings myself, from time to time.

Russ Lenth
University of Iowa


Showing 1-20 of 66 topics
Determining dropout points Mark Forte 3/2/15
Estimating sample size for Cox Proportional Hazards Leah Jacobs 2/25/15
two-way ANOVA interaction, contrast coefficients Kayle Sawyer 1/26/15
Applet won't run under Mac OS 10.10 Dan Moore 11/6/14
Cálculo del tamaño de muestra de un diseño de experimentos 2^5 Neyl Richard Triviño Jaimes 10/20/14
link to your reference Vincent Vinh-Hung 10/6/14
Comparing three proportions or medians annamaija 9/22/14
Power calculator for Cohen's F guy.it...@mail.huji.ac.il 9/18/14
Leading vs. Lagging Indicators, sample size, and confidence Franklin Mellott 8/26/14
Calculating sample size with more than one variance. Başar Erdivanlı 8/16/14
ANOVA question dsti...@slu.edu 8/14/14
Pilot study power calculation (already read help menus and discussion board) Melissa Hagan 8/13/14
Suggest moving discussions/questions to Cross Validated (on Stack Exchange) Lenth, Russell V 8/12/14
Request of feedback on planned proceedure Pablo M. Arnal 8/7/14
Python Programing Alan Hubbard 6/10/14
Sampling from a larger sample Maureen 6/8/14
Where to start? Power calculation. Kylie Drake 6/4/14
Sample Size for Retrospective Comparative Study Emily Scott 5/27/14
Significance without power? Bradford Apple 5/26/14
Grindr - iOS Event May 29th 2014 at Grindr Headquarters - Hollywood, CA Dakotta Grindr 5/26/14
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