does mauchly's test equal does box's test produce results what tests are used in the greenhouse geisser test? which test is used to determine covariance? how many levels is mauchly's test for which test is used for studies with multiple iv levels what test do i use to compare sphericity and covariance what is box test or mauchly test which test is used to test for sphericity? how many levels does the box test show how many variables can be tested within an iv if one has three dv's what is the box's test for equal covariances? when comparing spherical test with box test what tests does mauchly's use in mixed studies what is the standard deviation for the box's test which test is used to test sphericity does a mixed study have more than one iv level? what test is used to find sphericity what test is used to determine sphericity which test can be used when writing a mixed study?