« When we dichotomize, we sort but do not manipulate ».
– Joseph Rochford, PhD, on the use of median split in stress research
Correspondance between Sonia Lupien Ph.D., Joseph Rochford Ph.D. and Jeremy Miles Ph.D. on the drawbacks of using a median-split post-hoc to dichotomize a population in behavioural sciences.
“Breaking up is hard to do: The Heartbreak of Dichotomizing Continuous Data” by David L. Streiner
Correspondance on the issue of median split in stress research, Follow-up on the Streiner paper.