Exam 1

1. Metainformation

   Tag	Value
   file	Assumptions_vufsw-homogeneityofvariance-0263-en_vufsw-homogeneityofvariance-0263-en
   name	vufsw-homogeneityofvariance-0263-en
   section	assumptions/homogeneity of variance
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical literacy

   Question

   What assumption should be taken into account when using a One-way ANOVA?

   
   
   1. TRUE: Homogeneity of variances
   2. FALSE: Sphericity
   3. FALSE: Homogeneity of variances en sphericity
   4. FALSE: Homogeneity of covariance matrices
   
   

   Solution

   In one-way ANOVA, the variances of the residuals must be the same for all groups of the independent variable. This is the homogeneity of variances assumption.
   In Repeated Measures ANOVA, the variances of the difference scores of the conditions must be equal. This is the assumption of Sphericity.
   A Mixed Design ANOVA is a combination of a between-groups design and a Repeated Measures design. Thus, the assumption of homogeneity of variances must apply to the between groups part and the assumption of Sphericity to the Repeated Measures part.
   In MANOVA, the variances of the residuals of each dependent variable and the covariances of all pairs of dependent variables must be the same for all groups of the independent variable. This is the assuaging of Homogeneity of Covariance Matrices.

   
   
   1. True
   2. False
   3. False
   4. False