What is Sphericity?
A)A form of compound symmetry, which assumes that the variances of the difference between data taken from the same participant being tested are equal.
B)A form of compound symmetry, which does not assume that the variances of the difference between data taken from the same participant being tested are equal.
C)A form of parallel symmetry, which assumes that the errors of the difference between data taken from the same participant being tested are equal.
D)A form of compound symmetry, which assumes that the errors of the difference between data taken from the same participant being tested are unequal.

Question

Quizplus · Accepted Answer

Sphericity is a form of compound symmetry, which assumes that the variances of the differences between data taken from the same participant being tested are equal. This assumption is crucial for certain statistical tests, such as repeated measures ANOVA, to produce valid results.

What Is Sphericity