[Eeglablist] Question about EEG statistics

[Dr Cyril Pernet]

Eric 

> If you have a 3x2 within subject design (3  conditions and 2 groups (pre and post) - each participant come in three  times and EEG was recorded pre and post).  
> Is  it possible to use a t-test for each condition (pre vs post)? And then  be able to say something about the changes during each condition? Or is  it more appropriate to use a within subject ANOVA? 

By definition you want to do an ANOVA - this can be performed easily using the LIMO EEG toolbox
Now if this is pre-post intervension, this is not groups but repeated measures - again the toolbox can do either a repeated measure on the difference or the full 2*3 model

best
cyril

>

-- 
Dr Cyril Pernet,
Centre for Clinical Brain Sciences (CCBS)
Neuroimaging Sciences

The University of Edinburgh
Chancellor's Building
Room GU426D
49 Little France Crescent
Edinburgh   EH16 4SB 

cyril.pernet at ed.ac.uk
tel: 0131 465 9530
http://www.sbirc.ed.ac.uk/cyril
http://www.ed.ac.uk/edinburgh-imaging

-- 
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Scotland, with registration number SC005336.
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