Results 11 to 20 of about 79,305 (292)

A score test for zero‐inflation in correlated count data [PDF]

open access: yesStatistics in Medicine, 2005
AbstractTo account for the preponderance of zero counts and simultaneous correlation of observations, a class of zero‐inflated Poisson mixed regression models is applicable for accommodating the within‐cluster dependence. In this paper, a score test for zero‐inflation is developed for assessing correlated count data with excess zeros.
Xiang, Liming   +3 more
openaire   +6 more sources

Identifying Differentially Expressed Genes of Zero Inflated Single Cell RNA Sequencing Data Using Mixed Model Score Tests [PDF]

open access: yesFrontiers 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
doaj   +3 more sources

“Teaching To the Test” Family of Fallacies

open access: yesRevista Iberoamericana de Evaluación Educativa, 2017
This article explains the various meanings and ambiguities of the phrase “teaching to the test” (TttT), describes its history and use as a pejorative, and outlines the policy implications of the popular, but fallacious, belief that “high stakes” testing ...
Richard P. Phelps
doaj   +2 more sources

Determining factors influencing middle school teachers in demonstrating test score inflation

open access: yesInternational Journal of Assessment Tools in Education
This study examines the determinants of test score inflation among middle school teachers within Türkiye’s exam-driven education system. Test score inflation -defined as increasing students’ scores beyond actual performance due to internal or external ...
Deniz Gökçe Güngör, Ömer Kutlu
doaj   +2 more sources

Note on the radical inflation in the estimates of error variance in measurement models [PDF]

open access: yesFrontiers in Education
This note discusses the radical technical inflation in error variance and the related standard error of test scores from both conceptual and empirical viewpoints. This technical inflation arises as a direct consequence of the technical underestimation of
Jari Metsämuuronen, Jari Metsämuuronen
doaj   +4 more sources

Establishment of the Normative Value of Classical Bluestone’s Nine-Step Inflation/Deflation Tympanometric Eustachian Tube Function Test

open access: yesDiagnostics
Background/Objectives: The nine-step inflation/deflation tympanometric Eustachian tube function test (commonly referred to as the nine-step test) is a widely utilized method for evaluating Eustachian tube function (ETF).
Jing-Jie Wang   +2 more
doaj   +2 more sources

LD Score regression distinguishes confounding from polygenicity in genome-wide association studies [PDF]

open access: yes, 2015
Both polygenicity (many small genetic effects) and confounding biases, such as cryptic relatedness and population stratification, can yield an inflated distribution of test statistics in genome-wide association studies (GWAS).
Bulik-Sullivan, Brendan K   +13 more
core   +6 more sources

Goodness-of-fit, score test, zero-inflation and over-dispersion in generalized linear models.

open access: yes, 2001
In this thesis we develop goodness of fit tests of the generalized linear model with non-canonical links for data that are extensive but sparse. We derive approximations to the first three moments of the deviance statistic. A supplementary estimating equation is proposed from which the modified deviance statistic is obtained.
Deng, Dianliang.
openaire   +3 more sources

An Understanding of How GDP, Unemployment and Inflation Interact and Change across Time and Frequency

open access: yesEconomies, 2023
The main aim of this paper is to examine the dynamic relationship between the three pillars of the economy: unemployment, inflation, and GDP in Ethiopia using the cross-wavelet transform (XWT) analysis, the multivariate Student-t generalized ...
Yegnanew A. Shiferaw
doaj   +1 more source

Can an Electronic Money Transaction Raise the Inflation Rate? (Indonesian Pre-Pandemic)

open access: yesФинансы: теория и практика, 2023
Along with the rapid growth of technology, payment instruments are also changing. Electronic money is slowly but surely replacing the role of paper money and coins.
F. Fadli, V. Devia
doaj   +1 more source

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