[R] quasipoisson, test="F" or "Chi"

[Martin Hoyle]

Hi,

Please can someone tell me if this is correct for significance tests on count data;

1: If overdispersed, use quasipoisson, drop1(model, test="Chi"),
2: If not overdispersed, use (poisson or quasipoisson), drop1(model, test="Chi").

Thanks for your time,
Martin.

Martin Hoyle,
School of Life and Environmental Sciences,
University of Nottingham,
University Park,
Nottingham,
NG7 2RD,
UK
Webpage: http://myprofile.cos.com/martinhoyle