In this study, it is aimed to investigate theimpact of different missing data handling methods on the detection ofDifferential Item Functioning methods (Mantel Haenszel and Standardizationmethods based on Classical Test Theory and Likelihood Ratio Test ...
Hüseyin Selvi, Devrim Özdemir Alıcı
doaj +1 more source
A genome-wide association study demonstrates significant genetic variation for fracture risk in Thoroughbred racehorses [PDF]
Background: Thoroughbred racehorses are subject to non-traumatic distal limb bone fractures that occur during racing and exercise. Susceptibility to fracture may be due to underlying disturbances in bone metabolism which have a genetic cause.
Blott, Sarah C. +8 more
core +4 more sources
Levosimendan for patients with severely reduced left ventricular systolic function and/or low cardiac output syndrome undergoing cardiac surgery. a systematic review and meta-analysis [PDF]
Background: Previous studies have shown beneficial effects of levosimendan in high-risk patients undergoing cardiac surgery. Two large randomized controlled trials (RCTs), however, showed no advantages of levosimendan.
Arcadipane, Antonio +8 more
core +2 more sources
The Xiphias gladius (Linnaeus, 1758) data used in the present study were obtained from commercial fishing cruises of the pelagic longline fleet based in Itajaí, operating in the Southwest Atlantic.
Ana Lia Campos Quaggio +3 more
doaj +1 more source
Complications of hypertension in Minhang District of Shanghai based on electronic health records
ObjectiveTo determine the complications of hypertension among local residents in Minhang district of Shanghai, and provide scientific evidence for key preventive intervention.MethodsWe retrieved the data from the electronic health records, in which ...
WANG Jiayun +8 more
doaj +1 more source
Applying Item Response Theory (IRT) Modeling to an Observational Measure of Childhood Pragmatics: The Pragmatics Observational Measure-2 [PDF]
Assessment of pragmatic language abilities of children is important across a number of childhood developmental disorders including ADHD, language impairment and Autism Spectrum Disorder.
Cordier, Reinie +5 more
core +2 more sources
Conducting Meta-Analyses in R with the metafor Package [PDF]
The metafor package provides functions for conducting meta-analyses in R. The package includes functions for fitting the meta-analytic fixed- and random-effects models and allows for the inclusion of moderators variables (study-level covariates) in these
Wolfgang Viechtbauer
core +2 more sources
Irregular menstrual cycles as a risk factor of type 2 diabetes mellitus in women of childbearing age
Background: Irregular menstrual cycles are a risk factor for developing type 2 diabetes mellitus (DM) in women. Objective: This study aimed to evaluate irregular menstrual cycles as a risk factor of type 2 DM in women of childbearing age with body fat ...
Dhea Aghestya +3 more
doaj +1 more source
DIF in the Spanish Version of the Verbal Selective Reminding Test Using Samples From Hispanics in the United States, Mexicans, and Spaniards [PDF]
Aim: Before a test can be used in the target population, it is necessary to demonstrate that there is measurement equivalence. One way to do this is by studying differential item functioning (DIF).
Morales Ortiz, Manuel +1 more
core +1 more source
DIFFERENTIAL ITEM FUNCTIONING AND THE MANTEL‐HAENSZEL PROCEDURE [PDF]
ABSTRACTThe Mantel‐Haenszel procedure is a noniterative contingency table method for estimating and testing a common two‐factor association parameter in a 2×2×k table. As such it may be used to study “item bias” or differential item functioning in two groups of examinees.
Paul W. Holland, Dorothy T. Thayer
openaire +1 more source

