Results 21 to 30 of about 4,653,774 (301)

Impact of Correlation between Multiple Time Point Measurements on Pooled Effect Measures in Meta-analysis [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2023
Introduction: Effect estimates obtained from multiple time points based on the same set of subjects are observed to be correlated. There is a need to integrate these correlations in the derivation of pooled summary measures to improve the precision of ...
Deepthy Melepurakkal Sadanandan   +2 more
doaj   +1 more source

How many repeated measures in repeated measures designs? Statistical issues for comparative trials

open access: yesBMC Medical Research Methodology, 2003
Background In many randomized and non-randomized comparative trials, researchers measure a continuous endpoint repeatedly in order to decrease intra-patient variability and thus increase statistical power. There has been little guidance in the literature
Vickers Andrew J
doaj   +1 more source

Cramér-Von Mises Statistic for Repeated Measures

open access: yesRevista Colombiana de Estadística, 2014
The Cramér-von Mises criterion is employed to compare whether the marginal distribution functions of a k-dimensional random variable are equal or not. The well-known Donsker invariance principle and the Karhunen-Loéve expansion is used in order to derive
PABLO MARTÍNEZ-CAMBLOR   +2 more
doaj   +1 more source

Repeatability, number of harvests, and phenotypic stability of dry matter yield and quality traits of Panicum maximum jacq.

open access: yesActa Scientiarum: Animal Sciences, 2017
Selection of superior forage genotypes is based on agronomic traits assayed in repeated measures. The questions are how repeatable the performance of individual genotypes is and how many harvests are needed to select the best genotypes.
Francisco Duarte Fernandes   +7 more
doaj   +1 more source

Use of Repeated Measures Data Analysis for Field Trials with Annual and Perennial Crops

open access: yesPlants, 2022
Field studies conducted over time to collect any type of plant response to a set of treatments are often not treated as repeated measures data. The most used approaches for statistical analyses of this type of longitudinal data are based on separate ...
Paulo Pagliari   +3 more
doaj   +1 more source

Evaluating Risk-Adjusted Hospital Performance Using Large-Scale Data on Mortality Rates of Patients in Intensive Care Units: A Flexible Semi-Nonparametric Modeling Approach

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2023
Background and objective: Significant variability in the quality of healthcare supplied by hospitals is drawing broad attention from the United States Centers for Medicare and Medicaid Services. The primary issue is to evaluate hospital performance based
Yakun Liang, Xuejun Jiang, Bo Zhang
doaj   +1 more source

Generalized Mixed Models - an application to longitudinal data of citrus canker

open access: yesActa Scientiarum: Technology, 2019
There are several techniques available for longitudinal data analysis. In the last decade, much emphasis has been placed on generalized mixed models. The present work is dedicated to give an overview of this technique, with emphasis on the formulation ...
João Pedro Serenini   +3 more
doaj   +1 more source

Comparison of Random Regression Models with Different Order Legendre Polynomials for Genetic Parameter Estimation on Race Completion Speed of Arabian Horses

open access: yesAnimals, 2022
This work aimed to compare the fitting performance of the random regression models applied to the different order orthogonal Legendre polynomials on the race completion speed (m/s) of Arabian racing horses.
Hasan Önder   +6 more
doaj   +1 more source

Assessing the cardiac autonomic response to bicycle exercise in Olympic athletes with different loads of endurance training: new insights from statistical indicators based on multilevel exploratory factor analysis

open access: yesFrontiers in Physiology, 2023
Aim: The mechanisms governing the organism’s response to exercise are complex and difficult to study. Spectral analysis of heart rate variability (HRV) could represent a convenient methodology for studying humans’ autonomic nervous system (ANS). However,
Nadia Solaro   +4 more
doaj   +1 more source

On Planning Repeated Measures Experiments

open access: yes, 1986
7 pages, 1 article*On Planning Repeated Measures Experiments* (Federer, Walter T.) 7 ...
Federer, Walter T.   +3 more
core   +4 more sources

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