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2018/7/24 -You'd have to take a closer look at the computation of the Mauchly-W for your case data to find out why it turns out to be zero. Now as ...

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

2020/4/16 -Mauchly（モークリー）の球面性検定では、「データのどの部分から切り取っても、分散は等しい」かどうかを検定しております。

Mauchly's W. Approx. Chi-Square df. Sig. Greenhous e-Geisser. Huynh-Feldt. Lower-bound. Epsilona. Tests the null hypothesis that the error covariance matrix of ...

Testing for Sphericity: Mauchly's Test of Sphericity. As just mentioned, Mauchly's Test of Sphericity is a formal way of testing the assumption of sphericity.

2023/9/28 -Mauchly（モクリー）の球面性検定がよく知られています。Mauchlyの統計量Wは0（球面性が成り立たない）〜1（完全に球面性OK）の値を取り、仮説が棄却 ...

2012/8/6 -For whatever reason, whenever I run Mauchly's test of sphericity in SPSS, it gives me a Mauchly's W of 1.000, df 0, and Sig of . . Nothing ...

In some of its documentation SPSS quotes a formula for calculating the p-value associated with chi-squared statistic given above for Mauchly's W Statistic. The ...