Tag: sphericity

25 Differences between MANOVA and Repeated Measures ANOVA? 2011-07-18T15:20:42.077

18 Post-hocs for within subjects tests? 2010-07-23T20:14:05.327

9 Why does repeated measures ANOVA assume sphericity? 2014-05-12T02:22:31.783

7 How to get Sphericity in R for a nested within subject design? 2010-08-25T14:17:44.987

5 Bonferroni and Greenhouse-Geisser corrections with repeated-measures ANOVA 2012-04-26T11:38:32.837

4 Issues with the Huynh-Feldt values using either Anova or ezANOVA in R? 2011-11-23T22:53:34.087

4 Why is compound symmetry sufficient to establish sphericity? 2014-05-13T07:11:39.170

3 Whether to use multivariate F test, df adjusted estimate, or sphericity assumed in repeated measures ANOVA? 2011-09-30T08:45:15.133

3 Why is ezANOVA not giving me Mauchly┬┤s test of sphericity, even though I belive I have more than 2 levels of within-Ss variables? 2012-02-22T11:24:47.227

3 Box's test for equal covariances or Mauchly's test of sphericity? 2013-03-17T18:44:07.003

2 What are good values to assume for correlation and sphericity when estimating sample size for a within-subjects design 2012-08-27T14:50:00.617

2 Does Greenhouse-Geisser correction influence the effect size estimation, the statistical significance treshold, or both of them? 2014-03-06T20:19:22.787

2 Simulating data for repeated measures ANOVA 2014-03-17T09:55:02.923

2 Does sphericity (an RM-ANOVA assumption) require the covariances between difference scores to be the same? 2014-05-13T21:59:02.933

2 Generating a dataset satisfying / violating the RM-ANOVA sphericity assumption 2016-02-16T23:43:49.273

2 Why is the "sphericity assumption" in RM-ANOVA (constant variance of difference scores) called "sphericity"? 2016-05-12T05:33:25.897

2 No value or "."returned for Mauchly's Test of Sphericity in SPSS 2016-08-30T20:09:49.560

1 ANOVA post hoc with concerned about the sphericity 2013-02-05T12:20:41.363

1 Repeated-measures multiple regression that takes care of sphericity in R 2013-11-15T01:25:03.193

1 Sphericity assumption in multivariate approach 2014-05-05T09:23:30.743

1 HLM vs. repeated measures ANOVA -- sphericity concerns? 2015-10-10T23:56:18.877

1 Can I use RM-ANOVA with unbalanced within-subject design with sphericity violated? 2016-09-06T12:34:45.323

1 Mauchly Sphericity test conditions 2016-09-25T12:06:42.983

1 What does it mean to have sphericity established on a RM-ANOVA? 2016-09-27T20:59:53.357

1 Is sphericity violated if my sample size is less than the repeated measurement count? 2016-10-13T20:10:17.057

1 How to you calculate the Mauchly Test by hand 2017-02-24T15:18:30.393

1 Are there other alternatives to the Mauchly Sphericty Test? 2017-02-24T16:42:12.467

1 How does sphericity violations affect RM-ANOVA results? 2017-02-25T17:38:26.987

1 Mixed-ANOVA Design - Assumption 2017-07-24T23:51:20.797

1 Post-hoc tukey test after repeated measures ANOVA in R taking into account spherecity 2017-08-18T11:13:55.903

0 Sphericity. Mauchly's W of 1.000, df 0, and Sig of . . Nothing 2015-09-11T09:24:19.530

0 ANOVA does not show sphericity test 2015-10-14T17:41:39.560

0 Sphericity: Is there an accepted graphical inspection technique? 2017-03-01T16:39:56.840

0 Testing the assumption of sphericity for an interaction with within- and between-subject facors 2017-05-05T04:17:03.483