Search found 2 matches

by ElenaG
Sat Jul 27, 2024 2:58 pm
Forum: jamovi development
Topic: issue with Test for Sphericity ('Singularity error')
Replies: 6
Views: 94129

Re: issue with Test for Sphericity ('Singularity error')

The test for sphericity for a 3 way repeated measure anova with <16 partcipants simply does not work. If you look in the test for sphericity table all values are 'NaN' and 'a singularity error'. Hence the dfs and p values are not corrected. This issue occurs with both Windows and Mac versions. The s...
by ElenaG
Wed Jul 17, 2024 2:57 am
Forum: jamovi development
Topic: issue with Test for Sphericity ('Singularity error')
Replies: 6
Views: 94129

issue with Test for Sphericity ('Singularity error')

I am contacting you regarding Jamovi software version 2.3.28.0 for Mac OS. I carried out a simple 3-way repeated-measures Anova ( 2 x 3 x 6 anova for 8 participants) and noticed that the Test for Sphericity does not seem to work as it should when the number of repeats/ participants is 8, or more pre...