title: Testing for differences with the nonparametric Mann-Whitney U test.
authors.forename: J
authors.initials: J
authors.lastname: Whitney
mesh_terms: D015982:Bias; D003627:Data Interpretation, Statistical; D006801:Humans; D015399:Nursing Research / Q000379:methods*; D010865:Pilot Projects; D018709:Statistics, Nonparametric