نتایج جستجو برای: mann whitney test

تعداد نتایج: 821628  

2015
Billingsley Kaambwa Liz Gill Nicola McCaffrey Emily Lancsar Ian D. Cameron Maria Crotty Len Gray Julie Ratcliffe

BACKGROUND This study examined the relationships between a newly developed older person-specific non-preference-based quality of life (QoL) instrument (Older People's Quality of Life brief questionnaire (OPQoL-brief)) and two generic preference-based instruments (the EQ-5D-3L Level (EQ-5D-3 L) and the Adult Social Care Outcomes Toolkit (ASCOT) in a community-dwelling population of Australian ol...

Journal: :International Journal of Clinical Biostatistics and Biometrics 2017

2012
KENNETH J. BERRY PAUL W. MIELKE JANIS E. JOHNSTON

The historical development of the two-sample rank-sum test is explored. While most textbooks and journal articles attribute the origin of the two-sample rank-sum test to Wilcoxon (1945) and/or Mann and Whitney (1947), the test was independently developed by at least six researchers in the late 1940s and early 1950s. In addition to Wilcoxon and Mann and Whitney, Festinger (1946), Whitfield (1947...

Journal: :The Annals of Mathematical Statistics 1968

Journal: :Lifetime data analysis 2013
Bernard Rosner Weiliang Qiu Mei-Ling T Lee

The AUC (area under ROC curve) is a commonly used metric to assess discrimination of risk prediction rules; however, standard errors of AUC are usually based on the Mann-Whitney U test that assumes independence of sampling units. For ophthalmologic applications, it is desirable to assess risk prediction rules based on eye-specific outcome variables which are generally highly, but not perfectly ...

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