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MANOVA (significance tests (image (when sample sizes equal and other…
MANOVA
significance tests
when sample sizes equal and other assumptions not met
best choice unless there is a reason to use pillai's
if concentrated on first variate
Assumptions
Multivariate normality
if DVs normally distributed ok
homogeniety of covariance matrices
box's test
if sig.violation of HCM
but.. very powerful and often significant
if logarithms of diff. covariance matrices are in the came ball park can proceed
homogeneity of variance
levenes
cochranes
bartletts box
more than one DV
takes into account correlations between DVs
compare sum of squares and sum of cross products
SSCP matrix
Hypothesis
error
F statistic is the hypothesis/error
contrasts
