Hi Peter,
Yes, that looks perfectly fine, the only recommendation here would be to make sure all of your control covariates are centered (otherwise the 'AllSubjects' effect will be estimated at the zero-level of each control covariate, which may not be all that meaningful depending on each covariate specific encoding).
Best
Alfonso
Originally posted by Peter Skov-Andersen:
Hello CONN experts,
Is CONN suitable for a 2x2 within-subjects / repeated measures ANOVA interaction with covariate control (ANCOVA). From the toolbox manual, it was not clear whether CONN could handle a repeated measures ANCOVA. I read that including categorical covariates in an ANCOVA might be problematic.
I have combined 51 subjects with 4 scans each from two studies and wish to look at contrast and interaction effects.
Subject effects:
AllSubjects
Age: continuous
BMI: continuous
Sex: 0/1
Study#: 0/1
Effect of all subjects [1 0 0 0 0]
Sessions:
drug-condition1
drug-condition2
placebo- condition 1
Placebo- condition 2
Drug-condition interaction: User-defined contrast: [1 -1 -1 1]
Main drug effect: [1 1 -1 1]
Is my setup correct, and can CONN control for covariates in a repeated measures ANOVA (including categorical covariates)?
Kind regards,
Peter
Threaded View
Title | Author | Date |
---|---|---|
Peter Skov-Andersen | Apr 25, 2024 | |
Alfonso Nieto-Castanon | Apr 28, 2024 | |