1. please can anyone recommend a good source for calculating power for
logistic regression, with either or both categorical and metric
explanatory variables
2. what are the conventions for 'small', 'medium' and 'large' effect
sizes for the estimated parameters and/or varaince type measures such
as Nagelkerke
many thanks
diana
Dr. Diana Kornbrot
Head of Health & Human Sciences Research Institute
University of Hertfordshire
College Lane, Hatfield, Hertfordshire AL10 9AB, UK
voice: +44 (0) 170 728 4626
fax: +44 (0) 170 728 5073
email: [log in to unmask]
http://www.psy.herts.ac.uk/pub/D.E.Kornbrot/hmpage.html
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