MANOVA Flashcards

1
Q

What are the MANOVA assumptions?

A
  • onafhankelijkheid
  • multivariate normaliteit van de afhankelijke variabelen
  • within covariantie matrices gelijk voor alle groepen
  • geen meetfout
  • lineair verband tussen alle groepen
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2
Q

In case of multiple dependent variables, why is it preferred to do a MANOVA in stead of multiple univariate ANOVA’s?

A
  • several criterion measures will provide a more complete and detailed description of the phenomenon under investigation
  • multiple univariate tests inflate overall type 1 error rate
  • univariate analysis ignore important information: association between the dependent variables
  • the use of a total score may not reveal significant effects due to a canceling out effect
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