collaborators

1 paper

stat.ME2019

Analyses of 'change scores' do not estimate causal effects in observational data

Peter W. G. Tennant, Kellyn F. Arnold, George T. H. Ellison +1

Background: In longitudinal data, it is common to create 'change scores' by subtracting measurements taken at baseline from those taken at follow-up, and then to analyse the result…