Just to clarify: When SPM asks you define cell [1 2] in a 2x2 design,
this denotes the cell that corresponds to the first level of factor
one and the 2nd level of factor 2 (not 'the 2nd level of the first
On 12/20/07, Markus Burgmer <[log in to unmask]> wrote:
> dear michuri.
> as far as i know, in spms full factorial design you have to define the 2 of
> your factors by adding a "new factor" per each. enter name and level of
> factor per each new factor.
> in the second step you must define cells per each factor and level, e.g. 4
> new cells in a 2x2 design. the you should define for each cell the levels
> like [1 2] is the second level of the first factor and asign the related
> scans fpr this cell.
> this should be the major part. you can add additional covariates as
> nuisance variables if you like to.
> hope this helps (and hope this was correct)
Tobias Egner, Ph.D.
Research Assistant Professor
Cognitive Neurology and Alzheimer's Disease Center
Feinberg School of Medicine
320 East Superior, Searle 11-569
Chicago, IL 60611
Ph: (+1) 312 503 1836
Fax: (+1) 312 908 8789