029ddd9f__of_North_Carolina_Chapel_Hill__Purpose_of_test
[Parametric test] Two way analysis of variance Two way analysis of variance by ranks [Example] In the above example, to determine if the results differ in male and female subjects [Purpose of test] 
As above, but tests the influence (and interaction) of two different co variates
Basic Statistics for EBPT - Evidence Based Physical Therapy - Subject Guides at University of North Carolina Chapel Hill
Purpose of test