Apologies if this is a thread which has been on allstat
before.
Are there any 'rules of thumb' for sample sizing Multiple
regression and Analysis of covariance? I have an awful lot
of unknowns for any precise estimate but
prediction/confounding play a big part of a proposed study
and I would like to say how many subjects would be
appropriate.
Results will be posted
Thanks
Paul
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Paul Wicks
Senior statistician
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St. Georges Hospital Medical School
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