Results 41 to 50 of about 82,329 (299)

On the Uniqueness of Wald Sequential Tests

open access: yesThe Annals of Mathematical Statistics, 1956
Under certain mild restrictions on the distributions involved, it is shown that the probabilities of the two types of error uniquely determine the two bounds characterizing the Wald sequential probability ratio test.
openaire   +2 more sources

Testing for causality with Wald tests under nonregular conditions [PDF]

open access: yes, 2001
Das Kausalitaetskonzept von Granger und die Impuls-Antwort-Analyse sind zwei Konzepte, die haeufig verwendet werden, um kausale Beziehungen zwischen zwei Variablen in vektorautoregressiven (VAR) Modellen zu untersuchen.
Burda, Maike M.
core   +1 more source

Wald tests for main effects and interactions for binomial GLMM fit to the number of consumed snails in experimental trials.

open access: yes, 2023
Wald tests for main effects and interactions for binomial GLMM fit to the number of consumed snails in experimental trials.
Salohy Ravelotafita (16979368)   +16 more
core   +1 more source

Formulating Wald Tests of Nonlinear Restrictions

open access: yesEconometrica, 1985
On montre a partir de l'evidence de Monte Carlo que les differences dans la forme fonctionnelle des restrictions non lineaires sont importantes dans les petites tailles d ...
Gregory, Allan W, Veall, Michael R
openaire   +2 more sources

On Wald tests for globally and locally quadratic restrictions

open access: yes, 1991
In this paper I analyze the properties of Wald tests for quadratic and locally quadratic restrictions. Initially I consider the finite-sample properties of Wald tests for quadratic restrictions in the Classical Linear Regression (CLR) model.
Kemp, Gordon CR
core   +1 more source

Validating attribute hierarchies in cognitive diagnosis models

open access: yesFrontiers in Psychology
Cognitive diagnosis models (CDMs) are restricted latent class models that are widely used in educational and psychological fields. Attribute hierarchy, as an important structural feature of the CDM, can provide critical information for inferring ...
Xueqin Zhang   +3 more
doaj   +1 more source

Applying Wald's Variance Component Test

open access: yesThe Annals of Statistics, 1983
In this note a generalization of a variance component test that was first suggested by Wald is examined. Necessary and sufficient conditions are given for the test to be applicable in a mixed linear model. A uniqueness property of the test in terms of degrees of freedom is also obtained.
Seely, Justus F., El-Bassiouni, Yahia
openaire   +2 more sources

Adaptor protein CIN85 potentiates the motility of osteosarcoma cells via the Akt/mTOR and MMP2‐COL3A1 axis

open access: yesMolecular Oncology, EarlyView.
CIN85 is highly expressed in osteosarcoma, particularly in metastatic lesions. Its overexpression increases cell migration and Matrigel invasion, while silencing CIN85 suppresses these behaviors. Transcriptome analysis shows that CIN85 regulates MMP2, COL3A1, and Akt/mTOR signaling. Targeting these pathways reverses CIN85‐induced motility, highlighting
Iryna Horak   +10 more
wiley   +1 more source

One statistical test is sufficient for assessing new predictive markers

open access: yesBMC Medical Research Methodology, 2011
Background We have observed that the area under the receiver operating characteristic curve (AUC) is increasingly being used to evaluate whether a novel predictor should be incorporated in a multivariable model to predict risk of disease.
Begg Colin B   +2 more
doaj   +1 more source

Five‐Year Disease Progression in Synuclein Seeding Positive Sporadic Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To provide a comprehensive description of disease progression in synuclein seeding assay (SAA) positive sporadic Parkinson Disease participants, using Neuronal Synuclein Disease integrated biological and functional impairment staging framework.
Paulina Gonzalez‐Latapi   +19 more
wiley   +1 more source

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