Dear David,

It looks perfect and you might also want to add t constrast of -1 1 just to know what happens for an opposite constrast.
Regards,
Ravi

Sent from my Windows Phone

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From: David Hofmann
Sent: 4/8/14 05:53 PM
To: [log in to unmask]
Subject: [SPM] 2nd level contrasts

Hi @all,

I attached a picture of my design-matrix for 2nd level analysis. I want to compare the two groups with a two sample t-test (first group > second group) In order to do this I specified the t-contrast:[ 1 -1 ]. Is this correct?  Because I'm a little confused about what e.g. the t-contrast or F-contrast [1] or just [-1] would test.

greetings

David