title: Understanding statistical tests.
authors.affiliation: Division of Trauma and Critical Care, Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA.
authors.forename: Todd
authors.initials: T
authors.lastname: Neideen
authors.forename: Karen
authors.initials: K
authors.lastname: Brasel
mesh_terms: D000704:Analysis of Variance; D016009:Chi-Square Distribution; D006801:Humans; D013223:Statistics as Topic / Q000145:classification / Q000379:methods*; D018709:Statistics, Nonparametric