[FieldTrip] Statistics: comparing conditions with different sample size

[Julian Keil]

Dear Yoni,

do you mean different *group* sizes (as in 500 patients vs. 100 controls)? Then use the stat fun indepsamplesT.
If you mean 500 trials vs 100 trials within one subject, you can again use the indepsamplesT-function, but beware! The number of trials can severely influence your signal.
I personally strongly suggest using the same number of trials and subjects.

Best,

Julian


********************
Dr. Julian Keil

AG Multisensorische Integration
Psychiatrische Universitätsklinik
der Charité im St. Hedwig-Krankenhaus
Große Hamburger Straße 5-11, Raum E 307
10115 Berlin

Telefon: +49-30-2311-1879
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http://psy-ccm.charite.de/forschung/bildgebung/ag_multisensorische_integration

Am 22.01.2015 um 07:54 schrieb Yoni Levy:

> Is there a way in FT to deal with the statistical comparison of conditions with different sample size (for instance N = 500 vs N = 100)?
> 
> Thanks for any input
> Yoni
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> fieldtrip at donders.ru.nl
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