18 Apr
2017
18 Apr
'17
10:15 a.m.
Dear FreeSurfer experts,
I have a longitudinal design with 3 groups and 3 time points. For one group the intervention did not work so for now I would like to look at 2 groups only. Can I do this with the Longitudinal Two Stage Model by looking at the spc from tp1 to tp2 and then looking at the spc from tp2 to tp3?
Are there statistical reasons that forbid this procedure of comparing the change across time between groups?
Thanks for your help! Clara
--
Clara Kühn, Phd Student
Max-Planck-Institute for Human Cognitive and Brain Science
Department of Neuropsychology
Stephanstrasse 1A
04103 Leipzig, Germany
Phone: +49 341 - 9940 2271
Fax: +49 341 - 9940 2260
Web: www.cbs.mpg.de
E-Mail: ckuehn@cbs.mpg.de