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Post Hoc test Repeated Measures ANOVA #459

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BiomechFlo opened this issue Aug 21, 2019 · 3 comments
Closed

Post Hoc test Repeated Measures ANOVA #459

BiomechFlo opened this issue Aug 21, 2019 · 3 comments
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@BiomechFlo
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Hi,
I just worked on an old project and wanted to check the statistics. I did a Repeated Measures ANOVA (2 factors, 2 and 5 levels) including Bonferroni-Holm corrected Post-Hoc Tests using the JASP Version 0.10.2. The outcome of the Post-Hoc tests looked weird. I always got the same results (Mean Difference, SE, t, pholm) for the different comparisons. I repeated the analysis using JASP Version 0.9.1. The results for the ANOVA were identical whereas the results for the Post-Hoc Tests made much more sense. Could it be that there is something broken with the Post-Hoc Test in JASP version 0.10.2 doing repeated measures ANOVA?
I attached three files (RMA.zip):
oxy_con_new.jasp (analysis with JASP Version 0.10.2)
oxy_con_old.jasp (analysis with JASP Version 0.9.1)
slope_array.csv (data for analysis)
I am using a WIN7 PC (64bit system)
Kind regards Flo
RMA.zip

@TimKDJ
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TimKDJ commented Sep 11, 2019

@JohnnyDoorn can you check this out?

@JohnnyDoorn
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Hi Flo,
I think this is related to pooling the error term for post hoc tests in the RM ANOVA. I just finished rewriting the code, and it is now fixed! Thanks for reporting this - please reopen if you have any additional questions.
Kind regards
Johnny

@JohnnyDoorn
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JohnnyDoorn commented Oct 8, 2019 via email

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