Understanding statistical concepts in laboratory quality control measures in biomedical research

Juneja, Atul; Anand, Apoorva

doi:10.18203/2320-6012.ijrms20150919

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Key feature in analytical proficiency testing [5] Comparative studies of Shewhart, Thompson, Howarth and Youden representations: advantages and disadvantages [21] Implementation of two new graphical methods recommended by the ISO standard, Mandel's h statistic and the Youden plot, to evaluate the consistency between laboratories and within laboratories for radon and thoron exposures [22] A proficiency testing scheme (CNAS T0419) is described involving 217 laboratories in China as participants using their regular analytical methods for the determination of lead and arsenic in foundation cream cosmetics [20] An optimized Youden chart was developed and compared with the traditional and trimmed traditional…”

Section: Content Referencementioning

confidence: 99%

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Youden Two-Sample Method

Martin¹,

Velázquez²,

Asuero³

2017

Quality Control and Assurance - An Ancient Greek Term Re-Mastered

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The results obtained when testing materials, equipment and procedures are not generally identical. Factors that influence the magnitude of the results are not fully controllable. As such, the interpretation and analysis of results must take into account the variations caused by numerous and random unavoidable causes. Intercomparison exercises are considered of being of importance, as they do allow the examination of the analytical process and their generated results. Youden plot is particularly aimed at interlaboratory comparisons. The raw results provided by the participating laboratories are treated by a statistical method applied by the centre performing the trial. In order to materialize this, two similar materials with small differences in the concentration of the characteristics are required. The advantage of Youden analysis is its ability to separate the random errors with a minimum effort by participants in the design from the point of view of the analytical requirement. This book chapter illustrates the method that has been applied to elaborate on data covering a diverse scientific field: polyunsaturated fatty acids in fat and oils, total blood cholesterol and aspirin in pharmaceutical preparations. Finally, liquid chromatography with tandem mass spectrometry detector has been applied to the determination of an emerging contaminant, methylparaben (MeP), in surface waters.

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Section: Content Referencementioning

confidence: 99%

“…Performed literature review reveals that the Youden chart has been successfully used in agriculture, environmental chemistry, geochemistry, industry and medicine. The invention of the Youden diagram may be regarded as setting a landmark in quality control in clinical chemistry [21].…”

Section: Introductionmentioning

confidence: 99%

Youden Two-Sample Method

Martin¹,

Velázquez²,

Asuero³

2017

Quality Control and Assurance - An Ancient Greek Term Re-Mastered

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Public governance in rural ecotourism: The case of developing economy

Dagdag

2021

JGR

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Over the past decade, global studies on ecotourism provide an illuminating hope for economic development (Sangpakil, 2017; Kim, Xie, & Cirella, 2019; Wahono, Poernomo, & Kusumah, 2019). However, fewer of these studies work on rural ecotourism. With hopes on the potentiality of rural ecotourism in Quirino Province, this research delved into the management bearings of rural ecotourism. Primarily, it trails the various management practices of ecotourism attractions and significant differences in the responses thereof including problems encountered in this management journey. Anent to, employed descriptive approach. Data were obtained from a survey questionnaire and were statistically analyzed through SPSS. Revealed thereof, management responsibilities on ecotourism sites are most practiced. Interestingly, among these practices training for tourist personnel, facilities, services and infrastructures, cultural heritage, and marketing seemed to be substantial and need attention. Also, problems, such as few numbers of tourist arrival noted, lack of equipment for recreational activities in ecotourism sites, and lack of parking areas were the factors that require attention. With these aforementioned revelations, a proposed sustainable development plan was moulded.

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Understanding statistical concepts in laboratory quality control measures in biomedical research

Cited by 2 publications

References 4 publications

Youden Two-Sample Method

Youden Two-Sample Method

Public governance in rural ecotourism: The case of developing economy

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