Results 41 to 50 of about 79,305 (292)
The effect of rare variants on inflation of the test statistics in case-control analyses.
BACKGROUND: The detection of bias due to cryptic population structure is an important step in the evaluation of findings of genetic association studies. The standard method of measuring this bias in a genetic association study is to compare the observed ...
Jonathan Tyrer +4 more
core +1 more source
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay +13 more
wiley +1 more source
Further Comment on "'Lake Woebegone,' Twenty Years Later"
no ...
Richard P. Phelps
doaj
Objective Knee osteoarthritis (OA) commonly affects individuals with type 2 diabetes (T2DM) and is associated with increased risk of diabetes‐related complications. To better understand potential mechanisms, we examined the association between symptomatic knee OA and glycemic control in individuals with T2DM.
Lauren K. King +10 more
wiley +1 more source
“Lake Woebegone,” Twenty Years Later
Twenty years ago, John Cannell developed data on test scores that became known as the “Lake Woebegone effect.” This commentary describes that experience.
John Jacob Cannell, M.D.
doaj
Score Tests for Semiparametric Zero-inflated Poisson Models
Count data sets often produce many zeros. It is sometimes potentially questionable to use a linear predictor to model the effect of a continuous covariate of interest in zero-inflated count data. To relax the restriction, Li (2011) proposed a semiparametric zero-inflated Poisson (ZIP) regression model by using fixed-knot cubic $basis$ splines or $B ...
openaire +2 more sources
Objective Somatic items used in depression assessments can potentially overlap with symptoms related to physical illness, including systemic sclerosis (SSc). No studies have looked at whether somatic depression items may be influenced by diffuse versus limited SSc disease subtypes, which are associated with varying degrees of symptom presentation.
Sophie Hu +110 more
wiley +1 more source
Objective The objective of this study was to estimate the minimal important change (MIC) and minimal clinically important difference (MCID) for pain and physical function in individuals with hip osteoarthritis (OA) following a physiotherapist‐guided exercise intervention.
Yareni Guerrero +8 more
wiley +1 more source
Comments on "'Lake Woebegone,' Twenty Years Later"
J. J. Cannell’s article on the so-called “Lake Woebegone” effect for K-12 educational testing systems is mostly an historical account of technical issues and policy considerations that led in part to development of new types of test instruments for K-12 ...
D. J. McRae, Ph.D.
doaj
Utility of inflation accounting data to investors [PDF]
The objective of financial reporting is to provide information about an entity which is useful to a wide range of users in making economic decisions. This study empirically investigates the utility of inflation accounting data to investors, by examining ...
Byrne, Marann
core

