PPT Directory

25May/110

What To Do About the Multiple Comparisons Problem?

What To Do About the Multiple Comparisons Problem?
What To Do About the Multiple Comparisons Problem? Peter Z. Schochet . February 2008

http://www.seiservices.com/USED/IES/NCEE/NCEE08/downloads/Schochet,%2520Peter%2520--%2520What%2520to%2520Do.ppt

Filesize: 5033 KB | format : .PPT


Modern Approaches
Multiple Comparisons . Why multiple comparisons? If no HoV problem and fairly equal n, we can #final function to do comparisons using the raw ps

http://www.unt.edu/rss/class/mike/6810/Modern%2520Approaches%2520Multiple%2520Comparisons.ppt

Filesize: 5047 KB | format : .PPT


PSYC 6130
PSYC 6130, PROF. J. ELDER . 2 . Lecture 17 Summary . Why do multiple comparisons; The problem with multiple comparisons; Familywise and per-comparison alpha

http://elderlab.yorku.ca/~elder/teaching/psyc6130/lectures/11%2520Multiple%2520Comparisons/11%2520Multiple%2520Comparisons.ppt

Filesize: 5061 KB | format : .PPT


Two categorical variables: The chi-square test
The problem of multiple comparisons . Why do we do the “many-sided” chi-square test instead of a proportion test using the two biggest proportions for each

http://www.math.uregina.ca/~zhaoyang/chapter23.ppt

Filesize: 5075 KB | format : .PPT


Comparisons among groups within ANOVA
If no HoV problem and fairly equal n, can use #final function to do comparisons using the raw ps Summary for multiple comparisons . Let theory guide which

http://www.unt.edu/rss/class/mike/5030/Comparisons%2520among%2520groups%2520within%2520ANOVA.ppt

Filesize: 5089 KB | format : .PPT


Linear Contrasts and Multiple Comparisons (Chapter 9)
1-a for all unplanned comparisons as a group? Linear Contrasts and Multiple Comparisons But there’s a problem… E.g. if c=8, we get ? =0.0064! Very conservative

http://www.math.ttu.edu/~atrindad/stat5302/Lectures/U4.4-MultipleComparisons.ppt

Filesize: 5103 KB | format : .PPT


13: Comparing Several means (One-Way ANOVA)
Test statistic . C. P-value. Use t table or software . Do after a significant ANOVA to protect against the problem of multiple comparisons

http://www.sjsu.edu/faculty/gerstman/biostat-text/Gerstman_PP13.ppt

Filesize: 5117 KB | format : .PPT


Spatial Smoothing and Multiple Comparisons Correction for
Microsoft Powerpoint
Multiple Comparisons Correction for Dummies . Alexa Morcom, Matthew Brett Enables hypothesis testing and dealing with multiple comparison problem

www.fil.ion.ucl.ac.uk/spm/doc/mfd/2003/Smooth_talk.ppt


  • A Course in Multiple Comparisons and Multiple Tests
    Problem: There are 2 k-1 subsets K to be tested . This might take a while... Adjustment for Multiple Comparisons: Tukey-Kramer i/j 1 2

    http://courses.ttu.edu/isqs6348-westfall/images/6348/ASA2007.ppt

    Filesize: 5157 KB | format : .PPT


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