U STATISTIC By Nugent, Pam M.S. - April 29, 2013 noun. the statistic utilized in the mann-whitney uTEST. U STATISTIC: "The U statistic will have to be re-evaluated." Related Psychology Terms STRUCTURAL EQUATION MODELING (SEM) UNBIASED ESTIMATOR ORDER STATISTIC PILLAI FMOX STATISTIC WILKS'S LAMBDA TRIMMING THIOPENTAL ADAPTOMETER ZOOPHILIA Cite this page: Nugent, Pam M.S., "U STATISTIC," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/u-statistic/ (accessed June 25, 2017).