[Eeglablist] Average the F and p-values?

[Arnaud Delorme]

Dear David,

you might want to report all the significant electrodes (on a figure for example). Instead of averaging F or p-value, recompute your measures by collapsing time (for example you may use a time range to plot your ERP scalp topographies within an EEGLAB STUDY). Then you will obtain a single p-value for each electrode for the entire time range.

Arno

On 11 Feb 2013, at 03:12, david grahms wrote:

> Hello list,
> 
> I have a question about reporting statistics derived from EEGLAB, or rather how to reduce and report relevant statistics. One of the many strengths of EEGLAB is the possibility to perform statistical testing over all your electrodes and samples when performing a simple ERP experiment. I do, however have trouble understanding what to do with huge amount of F and p-values once I have performed the testing.
> 
> One problem is deciding which electrodes to include when reporting the statistical significance another is, if I choose one (or a cluster of relevant electrodes), do I still have to average relevant time period of that electrode and test it again, or can I average the F and p-values within that period for that specific electrode (or cluster)?
> 
> 
> Best regards,
> David
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