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Hi Zheng,

Please see a mock-up of a design here: https://dl.dropboxusercontent.com/u/2785709/outbox/mailinglist/design_zheng.ods

One is for within-subject effects (differences between timepoints, further compared between groups). The other is for between-subject effects (average of timepoints, compared among groups).

Hope this helps.

All the best,

Anderson


On 8 December 2016 at 16:49, Zheng Liu <[log in to unmask]> wrote:

Hi Anderson,

 

This project is to investigate the brain maturation effected by the degree of the dietary. Group 1 is “control”, group 2 is “high-level” and group3 is “low-level”. All subjects are scanned at two timepoints. I am trying to find out the significant voxel-based defferences, including between- and in-group.

 

Thanks,

Zheng

 

From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Anderson M. Winkler
Sent: Thursday, December 08, 2016 2:34 AM
To: [log in to unmask]
Subject: Re: [FSL] randomise repeat ANOVA

 

Hi Zheng,

 

What is the hypothesis that you'd like to test? Thanks.

 

All the best,

 

Anderson

 

 

On 7 December 2016 at 20:43, Zheng Liu <[log in to unmask]> wrote:

Hi All,

 

I have an ANOVA analysis problem using randomise.

I have 21 subjects data and each subject was measured twiced. These 21 subjects are divided into three groups, i.e group1=8 subjects, group2=6 subjects, group3=7 subjects.

Would anyone know how to design the matrix? My input data is a 4D matrix, i.e. volume_3d*42, where the first 21 volume_3d are measured at the first time and the order is accoring to the group1-3. The second 21 volume_3d are measured at the second time and the order is the same.

 

Thanks very much.

 

Zheng