Heckman earned her PhD in 1982 from the University of Michigan. Her dissertation, supervised by
Michael B. Woodroofe, was Two Treatment Comparison with Random Allocation Rule.[2]
^Nancy E. Heckman, Statistical Society of Canada, retrieved 2017-10-15
^Thompson, Mary E. (2014), "Reflections on women in statistics in Canada", in Lin, Xihong; Genest, Christian; Banks, David L.; Molenberghs, Geert; Scott, David W.;
Wang, Jane-Ling (eds.), Past, Present, and Future of Statistical Science, CRC Press, pp. 203–216,
ISBN9781482204988. See in particular
p. 210.