Question

which of the following assumptions are relevant in mixed ANOVA design homogeneity of regression slopes sphericity only
homogeneity of variance and sphericity multicollinearity ​

Answer 1

Answer:

Homogeneity of variance and sphericity.

Answer 2

The relevant assumption is the homogeneity of variance and sphericity.

• The equality of variances through all pairings of related measures defines the sphericity state.
• It is violated when variances amongst pairings of related groups are not equal.
• Mauchly's Test of Sphericity can be used to determine whether a distribution is spherical, which is comparable to the homogeneity of variances in a between-subjects ANOVA.
• Though it frequently misses sphericity departures in small samples and over-detects them in large samples, it is widely used and relatively simple to interpret.

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