On Thu, 17 Jul 2008 09:27:44 -0400, Julie McEntee <[log in to unmask]>
>I'm not sure if you should assign a weight to the questionnaire data in
>contrast when using it as a covariate of no interest. Also, I think if you
>do include it in the contrast, it should be negatively weighted. Maybe
>someone else could affirm/disaffirm?
No, it should be assigned a weight of zero.