Compute Canada

View All Papers
To Submit a new publication, Please visit the User's Section (logged in users only)

Publications:

To view a publication's Abstract (if available), click on publication's title

Author(s)

     Mewhort, D. J. K

Title

      A comparison of the randomization test with the F test when error is skewed.

Publication Name

     Behavioral Research Methods

Publication Type

     Journal
Publisher
     
Place
     
Editor(s)
     
Number
     
School
     
Volume
      37
Chapter
     
Pages
      426-435.
Other Publication Information
     
Publication Year
     2005
Abstract
      I compared the randomization/permutation test and the F test for a two-cell comparative experiment. I varied (1) the number of observations per cell, (2) the size of the treatment effect, (3) the shape of the underlying distribution of error and, (4) for cases with skewed error, whether or not the skew was correlated with the treatment. With normal error, there was little difference between the tests. When error was skewed, by contrast, the randomization test was more sensitive than the F test, and if the amount of skew was correlated with the treatment, the advantage for the randomization test was both large and positively correlated with the treatment. I conclude that, because the randomization test was never less powerful than the F test, it should replace the F test in routine work.
Keywords
     
Website
     http://
Paper Status
     Published
DOI / Publication ID
     



View All Papers