Citation

Senn SJ, Collie GS. Traffic Eng. Control 1988; 29(3): 168-169.

Affiliation

Dundee Coll of Technology, Dundee, Scotl

Copyright

(Copyright © 1988, Hemming Group)

DOI

unavailable

PMID

unavailable

Abstract

It is shown how the method of maximum likelihood in connection with a bivariate negative binomial distribution may be used to separate treatment effects from regression to the mean effects when analyzing data giving the frequency of accidents in two time periods for a number of sites on a road network. The method is illustrated using data from the Lothian Road Accident Statistics System (LORASS).