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Sphericity is the condition where the variances of the differences between all combinations of related groups (levels) are equal. Violation of sphericity is ...

Mauchly's sphericity test or Mauchly's W is a statistical test used to validate a repeated measures analysis of variance (ANOVA).

The assumption of sphericity states that the variance of the differences between treatment A and B equals the variance of the difference between A and C, which ...

2019/5/22 -This assumption is always met when there are only two levels of a repeated measures factor. Sphericity is both a necessary and sufficient (pre) ...

The sphericity assumption is satisfied when the variance of the difference between scores for any two levels of a repeated measures factor is constant. The ...

Sphericity occurs when there is complete equality of the variances of the differences between all variations of related groups. When the variances of the ...

Sphericity is a measure of how spherical an object is. Proposed by Waddell in 1935, the sphericity of a particle is defined as the ratio of the surface area ...

2017/11/11 -The assumption of sphericity refers to the equality of variances of the differences between treatment levels. In Repeated Measures ANOVA it ...

The assumption of sphericity states that the variance of the differences between treatment A and B equals the variance of the difference between A and C, which ...