Results 11 to 20 of about 8,439,715 (292)
A score test for zero‐inflation in correlated count data [PDF]
Statistics 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
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, 2020 Test-based accountability systems have become a widespread approach to improving educational quality at a large scale. However, studies of these systems have shown that they can have unintended consequences, such as inflating students’ scores on state assessments (Hamilton et al., 2007; National Research Council, 2011).
Braslow, David Arthur
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A score‐type test for heterogeneity in zero‐inflated models in a stratified population [PDF]
Statistics in Medicine, 2014 AbstractWe propose a score‐type statistic to evaluate heterogeneity in zero‐inflated models for count data in a stratified population, where heterogeneity is defined as instances in which the zero counts are generated from two sources. Evaluating heterogeneity in this class of models has attracted considerable attention in the literature, but existing ...
Cao, Guanqun, Hsu, Wei-Wen, Todem, David
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Detecting Differential Score Inflation in Charter Schools
, 2017 charter schools, score inflation, high-stakes ...
Mantil, Ann
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Analysis of Count Data by Transmuted Geometric Distribution
Journal of Statistical Theory and Applications (JSTA), 2019 Transmuted geometric distribution (TGD) was recently introduced and investigated by Chakraborty and Bhati [Stat. Oper. Res. Trans. 40 (2016), 153–176]. This is a flexible extension of geometric distribution having an additional parameter that determines ...
Subrata Chakraborty, Deepesh Bhati
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A study of the score test in discrimination poisson and zero-inflated poisson models [PDF]
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. However no one knows precisely the amount of zero observations that these models support. Depending on the sample size and null observations number the Poisson model can be used.
Vanessa Siqueira Peres da Silva +2 more
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Examining the effects of gaming and guessing on script concordance test scores
Perspectives on Medical Education, 2018 Introduction In a script concordance test (SCT), examinees are asked to judge the effect of a new piece of clinical information on a proposed hypothesis.
Stuart Lubarsky +4 more
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Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
Microbiome, 2021 Background Identification of bacterial taxa associated with diseases, exposures, and other variables of interest offers a more comprehensive understanding of the role of microbes in many conditions.
Wodan Ling +6 more
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Boston Naming Test automatic credits inflate scores of nonaphasic mild dementia patients [PDF]
Journal of Clinical and Experimental Neuropsychology, 2015 The Boston Naming Test (BNT), a 60-item test of confrontation naming, may be administered either from Item 1 or Item 30, depending on assumptions of performance. If the BNT is administered from Item 30, 29 automatic credits are given for preceding items, allowing identical norms for either administration.
Jacob, Stålhammar +3 more
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