Results 71 to 80 of about 12,380,363 (249)

Book Review for

open access: yes, 2007
xt has achieved its goal of presenting concepts in an understandable way to an audience familiar with the basic theory of linear algebra. The central theme of the text seems to focus on building models.
Linear Models
core  

Representation of Sickle Cell Disease Patients in Pediatric and Adult Care: What We Discovered Using Informatics for Integrating Biology and the Bedside (i2b2) Data

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Transitioning from pediatric to adult care is a high‐risk period for individuals with sickle cell disease (SCD). An initial observation at one academic medical center suggested a sex‐based disparity in clinic populations, prompting a national investigation.
Laurie J. Duckworth   +5 more
wiley   +1 more source

Model‐based ordination for phenological studies: From controlling sampling bias to inferring temporal associations

open access: yesMethods in Ecology and Evolution
Willig et al. (Methods in Ecology and Evolution, 15, 868–885, 2024) cautioned that unequal sampling effort and pseudoreplication can bias the characterisation of species phenology using circular statistics.
Hao Ran Lai
doaj   +1 more source

THE BIVARIATE CORRELATION COEFFICIENT: FROM CONCEPT TO APPLICATION

open access: yesCentral Asian Journal of Medical Hypotheses and Ethics
The bivariate correlation coefficient is among the most fundamental and widely applied measures in statistical analysis, offering a quantitative assessment of the association between two continuous variables.
Farrokh Habibzadeh
doaj   +1 more source

Uncovering Inequities: The Role of Social Determinants of Health in Hospitalized Adolescents and Young Adults With Heavy Menstrual Bleeding

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Heavy menstrual bleeding (HMB) is a common condition among adolescents and young adults (AYAs) and is the leading cause of iron deficiency anemia (IDA) in this population. Growing evidence suggests that social determinants of health (SDOH) influence menstrual bleeding patterns, access to care, and treatment. However, no studies have
Maria Carter‐Febres   +6 more
wiley   +1 more source

Validating linear restrictions in linear regression models with general error structure [PDF]

open access: yes, 2006
A new method for testing linear restrictions in linear regression models is suggested. It allows to validate the linear restriction, up to a specified approximation error and with a specified error probability.
Holzmann, Hajo   +2 more
core   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

Insensitivity Regions and Outliers in Mixed Models with Constraints

open access: yesAustrian Journal of Statistics, 2016
A procedure for detecting outliers in regular linear regression models with constraints on mean value parameters is presented. A problem, how unknown variance components influence the optimum quality of used test statistics, is studied by sensitivity ...
Eva Fišerová, Lubomír Kubáček
doaj   +1 more source

The limiting power of autocorrelation tests in regression models with linear restrictions [PDF]

open access: yes
It is well known that the Durbin-Watson and several other tests for first-order autocorrelation have limiting power of either zero or one in a linear regression model without an intercept, and tend to a constant lying strictly between these values when ...
Wan, Alan, Zou, Guohua, Banerjee, Anurag
core  

On Rao score and PearsonX 2 statistics in generalized linear models

open access: yes, 2005
Goodness-of-fit, Regression Models, Equivalence of Test Statistics, Rao Score test, PearsonX 2 , Generalized Linear Models,
Gianfranco Lovison, LOVISON, Gianfranco
core   +1 more source

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