نتایج جستجو برای: variance of inter

تعداد نتایج: 21176836  

2003
A. K. ROYCHOUDHURY

Mathematical formulae for the sampling variances of average heterozygosity and NEI'S genetic distance are developed. These sampling variances are decomposed into their two components, i.e. the inter-locus and intra-locus variances. The relationship between the number of loci and the number of individuals per locus to be examined for estimating average heterozygosity and genetic distance is also...

2008
M. Yucel R. M. Wellard I. Harding M. Kean N. Solowij D. I. Lubman M. Seal A. Fornito S. J. Wood

retest scans (MRS 2 & MRS 3) following a cognitive challenge task; B. Placement of the voxel-of-interest in the ACC; C. Examples of metabolite concentrations across three within subject scanning sessions for Cr and NAA and; D. Variation around the mean of each metabolite as a function of test-retest (yellow bars) and inter-subject (blue bars) variability. The numbers on the blue bars are the in...

Recognition of genetic reserves and desirable genes is the basis of breeding programs. So far, in Iran, due to the lack of recognition of genetic resources, a considerable breeding program has not been done on native plants. The study of the genetic diversity of violets as a native plant with ornamental and medicinal uses is the great importance in advancing the breeding goals of this plant. So...

2017
Tae Kyun Kim

Analysis of variance (ANOVA) is one of the most frequently used statistical methods in medical research. The need for ANOVA arises from the error of alpha level inflation, which increases Type 1 error probability (false positive) and is caused by multiple comparisons. ANOVA uses the statistic F, which is the ratio of between and within group variances. The main interest of analysis is focused o...

افخم ابراهیمی, عزیزه , بیرشک, بهروز , زارع, مریم , شایقیان, زینب ,

Objectives: In order to investigate the effectiveness of pharmacological and non-pharmacological treatment methods for decreasing agitation in diseases like dementia, a proper scale like Cohen-Mansfield Agitation Inventory (CMAI) is needed. The aim of the present study was to evaluate the psychometric properties of the CMAI. Method: The sample consisted of 100 caregivers of patients with Alzhei...

Journal: :SIAM journal on mathematics of data science 2022

We introduce $k$-variance, a generalization of variance built on the machinery random bipartite matchings. $K$-variance measures expected cost matching two sets $k$ samples from distribution to each other, capturing local rather than global information about measure as increases; it is easily approximated stochastically using sampling and linear programming. In addition defining $k$-variance pr...

Journal: :The British journal of mathematical and statistical psychology 2008
Kilem Li Gwet

Pi (pi) and kappa (kappa) statistics are widely used in the areas of psychiatry and psychological testing to compute the extent of agreement between raters on nominally scaled data. It is a fact that these coefficients occasionally yield unexpected results in situations known as the paradoxes of kappa. This paper explores the origin of these limitations, and introduces an alternative and more s...

Journal: :The British journal of nutrition 2005
Nicolle Bader Anja Bosy-Westphal Britta Dilba Manfred J Müller

The objective of the present study was to investigate the contribution of intra-individual variance of resting energy expenditure (REE) to interindividual variance in REE. REE was measured longitudinally in a sample of twenty-three healthy men using indirect calorimetry. Over a period of 2 months, two consecutive measurements were done in the whole group. In subgroups of seventeen and eleven su...

2015
Anton Stepikhov Anastassia Loukina

The paper explores the interaction between sentence boundaries marked by annotators in transcriptions of Russian spontaneous speech and actual prosodic boundaries in the signal. The aim of the research is to investigate whether annotators’ prosodic competence allows them to correctly detect sentence boundaries in speech based on textual information only. We found that inter-annotator agreement ...

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