NDLI: Introduction of z-score arrow ranges (ZSAR) in proficiency testing

Content Provider	Springer Nature Link
Author	Putten, Kees J. Lamers, Robert Jan A. N.
Copyright Year	2015
Abstract	Most proficiency testing (PT) providers do not calculate the performance of participants that report results that are below the limit of quantification, so-called truncated results ("< results"). The ISO FDIS 13528 standard describes three approaches for the analysis of censored data. DUCARES leaves out truncated results from the statistical evaluation. Although these results are removed from the statistical dataset, it is possible, however, to give a performance indication with z-score ranges. For this, DUCARES has developed the graphical z-score arrow range (ZSAR) method which considers the full interval of potentially possible results as described by the truncated value
Starting Page	355
Ending Page	358
Page Count	4
File Format	PDF
ISSN	09491775
Journal	Accreditation and Quality Assurance
Volume Number	20
Issue Number	5
e-ISSN	14320517
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-08-09
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ZSAR method Truncated values Proficiency testing ISO 13528 Analytical Chemistry Food Science Biochemistry Commercial Law Ecotoxicology Marketing
Content Type	Text
Resource Type	Article
Subject	Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Introduction of z-score arrow ranges (ZSAR) in proficiency testing