Results 11 to 20 of about 4,890,855 (299)
Generalised Score and Wald Tests [PDF]
Advances in Decision Sciences, 2010 The generalised score and Wald tests are described and related to their nongeneralised versions. Two interesting applications are discussed. In the first a new test for the Behrens-Fisher problem is derived. The second is testing homogeneity of variances from multiple univariate normal populations.
Paul Rippon, John C. W. Rayner
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Frontiers in Genetics, 2021 Single cell RNA sequencing (scRNA-seq) allows quantitative measurement and comparison of gene expression at the resolution of single cells. Ignoring the batch effects and zero inflation of scRNA-seq data, many proposed differentially expressed (DE ...
Zhiqiang He +3 more
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Frontiers in Genetics, 2021 As a pivotal research tool, genome-wide association study has successfully identified numerous genetic variants underlying distinct diseases. However, these identified genetic variants only explain a small proportion of the phenotypic variation for ...
Liwan Fu +5 more
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Z Scores, Standard Scores, and Composite Test Scores Explained [PDF]
Indian Journal of Psychological Medicine, 2021 Patients may be assessed using a battery of tests where different tests yield scores in different units, where different tests have different minimum and maximum scores, and where higher or lower scores mean different things in different tests. Therefore, a composite test score cannot be obtained by simple addition or averaging of scores in the ...
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Acta Scientiarum: Technology, 2013 In many experimental situations the sample may present excess zero observations and generally are used probabilistic models for zero inflated to represent them.
Vanessa Siqueira Peres da Silva +2 more
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Monte Carlo Test for Polynomial Covariates
Revstat Statistical Journal, 2012 In this paper, we review the score test procedure used for testing polynomial covariate effects in a semi parametric additive mixed model. This test is based on the mixed model representation of the smoothing spline estimator of the nonparametric ...
Abdeljelil Farhat , Sami Mestiri
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Team Performance with Test Scores [PDF]
Proceedings of the Sixteenth ACM Conference on Economics and Computation, 2015 Team performance is a ubiquitous area of inquiry in the social sciences, and it motivates the problem of team selection —choosing the members of a team for maximum performance. Influential work of Hong and Page has argued that testing individuals in isolation and then assembling the highest scoring ones into a team ...
Jon M. Kleinberg, Maithra Raghu
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A gene based combination test using GWAS summary data
BMC Bioinformatics, 2023 Background Gene-based association tests provide a useful alternative and complement to the usual single marker association tests, especially in genome-wide association studies (GWAS). The way of weighting for variants in a gene plays an important role in
Jianjun Zhang +5 more
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The black-white education-scaled test-score gap in grades k-7 [PDF]
, 2017 We measure the black-white achievement gap from kindergarten through seventh grade on an interval scale created by tying each grade/test score combination to average eventual education. After correcting for various sources of test measurement error, some
Bond, Timothy N., Lang, Kevin
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Inflated Kumaraswamy distributions
Anais da Academia Brasileira de Ciências, 2019 : The Kumaraswamy distribution is useful for modeling variables whose support is the standard unit interval, i.e., (0, 1). It is not uncommon, however, for the data to contain zeros and/or ones.
FRANCISCO CRIBARI-NETO, JÉSSICA SANTOS
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