Results 41 to 50 of about 45,141 (310)
Many latent constructs in the social sciences, such as political interest, are measured with single-question instruments. Furthermore, survey programs often differ in the wording and response format of those instruments.
Ranjit Konrad Singh
doaj +1 more source
Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley +1 more source
An Item Response Theory Approach to the Maintenance of Standards in Public Examinations in England [PDF]
Every year outcomes from public examinations in the UK rise: politicians congratulate pupils on their hard earned achievement; the media questions whether this achievement is real; those responsible for administrating the examinations defend their ...
WHEADON, CHRISTOPHER,BRIAN +1 more
core
A Comparison of Covariates, Equating Designs, and Methods in Equating TIMSS 2019 Science Tests
This research aimed to compare the equated scores by the methods based on classical test theory (CTT) and kernel equating, using covariates design (NEC) and anchor test design (NEAT).
Sezer Başaran, Elif +5 more
core +1 more source
A General Framework for Modeling Missing Data Due to Item Selection With Item Response Theory
In education testing, the items that examinees receive may be selected for a variety of reasons, resulting in missing data for items that were not selected.
Paul A. Jewsbury +2 more
doaj +1 more source
A Comparison of Traditional and Kernel Equating Methods
Inthis study, the equated score results of the kernel equating (KE) methodcompared with the results of traditional equating methods—equipercentile andlinear equating and 9th grade 2009 ÖBBS Form B of Social Sciences and 2009 ÖBBSForm D of Social Sciences
Selahattin Gelbal +1 more
doaj +1 more source
Bayesian Nonparametric (BNP) modelling can be used to obtain more detailed information in test equating studies and to increase the accuracy of equating by accounting for covariates.
Meltem Yurtcu +2 more
doaj +1 more source
We show that the Diophantine problem (decidability of equations) is undecidable in free associative algebras over any field and in the group algebras over any field of a wide variety of torsion free groups, including toral relatively hyperbolic groups, right-angled Artin groups, commutative transitive groups, the fundamental groups of various graph ...
Olga Kharlampovich, Alexei G. Myasnikov
openaire +2 more sources
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai +4 more
wiley +1 more source
Equating by Using Circle Equation Approach: Applied Mathematics Formula for Prevent Discrimination
This study aims to determine the accuracy of the equating method that uses a circle equation approach in terms of its circular arc (Simplified Circle Arc). This research uses 2015 National Examination data from two questions packages. Using the number of
Deni Iriyadi +2 more
doaj +1 more source

