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Mdscore: an R package to compute improved score tests in generalized linear models
(Foundation for Open Access Statistics, 2014-10)
Local power and size properties of the LR, Wald, score and gradient tests in dispersion models
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
We derive asymptotic expansions for the nonnull distribution functions of the likelihood ratio, Wald, score and gradient test statistics in the class of dispersion models, under a sequence of Pitman alternatives. The ...
A note on the local power of the LR, Wald, score and gradient tests
(INST MATHEMATICAL STATISTICSCLEVELAND, 2012)
This paper examines the local power of the likelihood ratio, Wald, score and gradient tests under the presence of a scalar parameter, phi say, that is orthogonal to the remaining parameters. We show that some of the ...
Comparación entre los scores de ripasa y Alvarado en el diagnóstico de apendicitis aguda
(Universidad Privada Antenor Orrego - UPAO, 2014)
Determinar si el score de RIPASA es más efectivo que el score de Alvarado en el diagnóstico de Apendicitis Aguda en pacientes de 14 a 60 años de edad en el Hospital Regional Docente de Trujillo.
MATERIAL Y MÉTODO: Realizamos ...
Changes in test scores distribution for students of the fourth grade in Brazil: a relative distribution analysis for the years 1997-2005
(Pergamon-Elsevier Science Ltd, 2013-06)
In Brazil, the mean of math test scores for students of the fourth grade declined by approximately 0.2 standard deviation in the late 1990s. However, the potential changes in the distribution of scores have never been ...
Tests of proportional hazards and proportional odds models for grouped survival data
(International Biometric Soc, 2000-12-01)
In this paper, we derive score test statistics to discriminate between proportional hazards and proportional odds models for grouped survival data. These models are embedded within a power family transformation in order ...
Tests of proportional hazards and proportional odds models for grouped survival data
(International Biometric Soc, 2000-12-01)
In this paper, we derive score test statistics to discriminate between proportional hazards and proportional odds models for grouped survival data. These models are embedded within a power family transformation in order ...
Small-Sample Corrections for Score Tests in Birnbaum-Saunders Regressions
(TAYLOR & FRANCIS INC, 2011)
In this article, we deal with the issue of performing accurate small-sample inference in the Birnbaum-Saunders regression model, which can be useful for modeling lifetime or reliability data. We derive a Bartlett-type ...
Improved score tests in symmetric linear regression models
(TAYLOR & FRANCIS INC, 2008)
The class of symmetric linear regression models has the normal linear regression model as a special case and includes several models that assume that the errors follow a symmetric distribution with longer-than-normal tails. ...
On score tests in structural regression models
(GORDON BREACH SCI PUBL LTD, 1998)
In this paper we investigate the distribution of the score statistics for testing hypothesis about the slope parameter in a simple structural regression model. It is shown that for two of the most common ways of making the ...