Literature DB >> 6692538

How to improve estimates of imprecision.

J S Krouwer, R Rabinowitz.   

Abstract

Authors sometimes report total imprecision as being less than within-run imprecision. This leads one to question how well the underlying statistical concepts are understood. This article explains statistical concepts relevant to imprecision studies and reviews proper use of the relevant statistical terms. Calculation of total imprecision and its components is illustrated by a numerical example. Two of the most common calculation mistakes are pointed out. Finally, we recommend improvements in experimental design that will result in more precise estimates.

Mesh：

Year:  1984        PMID： 6692538

Source DB:  PubMed          Journal:  Clin Chem        ISSN： 0009-9147            Impact factor:   8.327


  40 in total

1.  Simultaneous quantification of free and glucuronidated cannabinoids in human urine by liquid chromatography tandem mass spectrometry.

Authors:  Karl B Scheidweiler; Nathalie A Desrosiers; Marilyn A Huestis
Journal:  Clin Chim Acta       Date:  2012-07-06       Impact factor: 3.786

2.  Improvements in detection of antibody to hepatitis B core antigen by treating specimens with reducing agent in an automated microparticle enzyme immunoassay.

Authors:  A M Spronk; L Schmidt; C Krenc; L Pavlis-Jenkins; J Brady; S Taskar; L Angus-Finn; L Mimms
Journal:  J Clin Microbiol       Date:  1991-03       Impact factor: 5.948

3.  Validation of the only commercially available immunoassay for synthetic cathinones in urine: Randox Drugs of Abuse V Biochip Array Technology.

Authors:  Kayla N Ellefsen; Sébastien Anizan; Marisol S Castaneto; Nathalie A Desrosiers; Thomas M Martin; Kevin L Klette; Marilyn A Huestis
Journal:  Drug Test Anal       Date:  2014-03-21       Impact factor: 3.345

4.  Assessment of Imprecision in gamma interferon release assays for the detection of exposure to Mycobacterium tuberculosis.

Authors:  Tamara Tuuminen; Esko Tavast; Riitta Väisänen; Jaakko-Juhani Himberg; Ilkka Seppälä
Journal:  Clin Vaccine Immunol       Date:  2010-02-24

5.  Excretion of methadone in sweat of pregnant women throughout gestation after controlled methadone administration.

Authors:  Allan J Barnes; Bertrand R Brunet; Robin E Choo; Patrick Mura; Rolley E Johnson; Hendrée E Jones; Marilyn A Huestis
Journal:  Ther Drug Monit       Date:  2010-08       Impact factor: 3.681

6.  Excretion of methamphetamine and amphetamine in human sweat following controlled oral methamphetamine administration.

Authors:  Allan J Barnes; Michael L Smith; Sherri L Kacinko; Eugene W Schwilke; Edward J Cone; Eric T Moolchan; Marilyn A Huestis
Journal:  Clin Chem       Date:  2007-11-02       Impact factor: 8.327

7.  Development and validation of the first liquid chromatography-tandem mass spectrometry assay for simultaneous quantification of multiple antiretrovirals in meconium.

Authors:  Sarah K Himes; Karl B Scheidweiler; Katherine Tassiopoulos; Deborah Kacanek; Rohan Hazra; Kenneth Rich; Marilyn A Huestis
Journal:  Anal Chem       Date:  2013-01-14       Impact factor: 6.986

8.  Optimization and validation of a liquid chromatography-tandem mass spectrometry method for the simultaneous quantification of nicotine, cotinine, trans-3'-hydroxycotinine and norcotinine in human oral fluid.

Authors:  Diaa M Shakleya; Marilyn A Huestis
Journal:  Anal Bioanal Chem       Date:  2009-10-18       Impact factor: 4.142

9.  The Effect of Flaxseed Supplementation on Hormonal Levels Associated with Polycystic Ovarian Syndrome: A Case Study.

Authors:  Debra A Nowak; Denise C Snyder; Ann J Brown; Wendy Demark-Wahnefried
Journal:  Curr Top Nutraceutical Res       Date:  2007       Impact factor: 0.416

10.  Confirmatory analysis of buprenorphine, norbuprenorphine, and glucuronide metabolites in plasma by LCMSMS. Application to umbilical cord plasma from buprenorphine-maintained pregnant women.

Authors:  Marta Concheiro; Hendreé Jones; Rolley E Johnson; Diaa M Shakleya; Marilyn A Huestis
Journal:  J Chromatogr B Analyt Technol Biomed Life Sci       Date:  2010-01-01       Impact factor: 3.205
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