William John Youden (April 12, 1900 – March 31, 1971) was an Australian-born American statistician who formulated new statistical techniques in statistical analysis and in design of experiments. He developed the "Youden square", an incomplete block design developed from a 1937 paper, "Use of Incomplete Block Replications in Estimating Tobacco Mosaic Virus". He also helped to introduce the concept of restricted randomization, which he called constrained randomization.[1][2][3][4] He devised Youden's J statistic as a simple measure summarising the performance of a binary diagnostic test.[5]
^"Youden, William John.", Complete Dictionary of Scientific Biography. 2008. Retrieved April 09, 2012 from Encyclopedia.com
^BIOGRAPHY 5.1 William J. Youden (1900–1971), swlearning.com (adapted from Journal of Quality Technology, January 1972, pp. 3–6, and Dictionary of Scientific Biography, vol. XIV (New York: Charles Scribner's, 1976), pp. 552–557.)
^Churchill Eisenhart and Joan R. Rosenblatt. W. J. Youden, 1900–1971, The Annals of Mathematical Statistics, Vol. 43, No. 4 (Aug., 1972), pp. 1035–1040