Dear allstat members,
I've a problem concerning with power calculation for a test for interaction
among two binary variables on a binary outcome.
The field of application is a clinical trial.
On the classical books (S.J.Pocock : A practical approach, for example) I
found no practical help.
Can anyone suggest me a solution or a reference ?
Thanks in advance.
Luigi Santoro
Istituto di Ricerche Farmacologiche "Mario Negri"
Department of Cardiovascular Research
Laboratory of Clinical Informatics and Applied Statistics
Via Eritrea, 62
Milan
Italy
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