Dear List
I posted before but didn't get a clear answer
If I have a multiple regression (2 groups) and want to add covariate of no interest for e.g questionnaire results do I add them in as the absolute values they are 40, 43, 45 etc one for each subject?
and then do my contrast as usual weighting the questionnaire vector as 0?
Thanks in advance for help
Ciara
Dr Ciara McCabe
Neurosciences Building
Department of Psychiatry
Warneford Hospital
University of Oxford
Warneford Lane
Oxford
Tel:01865 223778
mob:07966035631
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