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Just reposting to see if anyone has suggestions. If I need to clarify aspects of the study design or analysis, please let me know. I look forward to hearing your ideas. Thanks! Beth -- *Elizabeth Heinrichs-Graham, Ph.D.* Assistant Professor, Department of Neurological Sciences Center for Magnetoencephalography (MEG) University of Nebraska Medical Center 988422 Nebraska Medical Center Omaha, NE 68198-8422 [log in to unmask] Phone: 402-552-6433 The information in this e-mail may be privileged and confidential, intended only for the use of the addressee(s) above. Any unauthorized use or disclosure of this information is prohibited. If you have received this e-mail by mistake, please delete it and immediately contact the sender. On Wed, Sep 26, 2018, 11:22 AM Elizabeth Heinrichs-Graham < [log in to unmask]> wrote: > SPMers, > I'm attempting to run a mixed model at the second level in SPM12 with 2 > within-subject conditions, age as a continuous variable, and RT as a > covariate. I'm particularly interested in probing the age-by-condition > interaction, but I'm unsure as to how to set up the contrasts. Thus far, > I've set up a full-factorial with Condition 1 and Condition 2 as > within-subjects levels, and age and RT as covariates; you'll find a > snapshot of the design matrix attached. So first, I'd like to know if my > design matrix is set up appropriately, and secondly, which contrasts I > should use to look at main effects, as well as the age-by-condition > interaction. > > Thanks, > Beth > -- > *Elizabeth Heinrichs-Graham, Ph.D.* > Assistant Professor, Department of Neurological Sciences > Center for Magnetoencephalography (MEG) > University of Nebraska Medical Center > 988422 Nebraska Medical Center > Omaha, NE 68198-8422 > [log in to unmask] > Phone: 402-552-6433 > > > The information in this e-mail may be privileged and confidential, > intended only for the use of the addressee(s) above. Any unauthorized use > or disclosure of this information is prohibited. If you have received this > e-mail by mistake, please delete it and immediately contact the sender. >