Results 41 to 50 of about 485,678 (204)
Multipole polarizability of a graded spherical particle [PDF]
We have studied the multipole polarizability of a graded spherical particle in a nonuniform electric field, in which the conductivity can vary radially inside the particle.
Dong, L. +3 more
core +2 more sources
Evaluation of Buss-Perry aggression Questionnaire with item response theory (IRT) [PDF]
The aim of this research was to examine the psychometric properties of the Buss-Perry Aggression Questionnaire on Serbian sample, using the IRT model for graded responses.
Dinić Bojana, Janičić Bojan
doaj +1 more source
In this study, the root mean square error values of item parameters’ estimation in a two-dimensional structure condition were examined under different conditions, considering three and five categories with different algorithms (Expectation–Maximization ...
Serap BÜYÜKKIDIK, Hakan Yavuz ATAR
doaj
Differential item functioning in the Patient Reported Outcomes Measurement Information System Pediatric Short Forms in a sample of children and adolescents with cerebral palsy. [PDF]
AIM: The present study examined the Patient Reported Outcomes Measurement Information System (PROMIS) Mobility, Fatigue, and Pain Interference Short Forms (SFs) in children and adolescents with cerebral palsy (CP) for the presence of differential item ...
Bjorner +17 more
core +2 more sources
Assessment of health surveys: fitting a multidimensional graded response model [PDF]
The multidimensional graded response model, an item response theory (IRT) model, can be used to improve the assessment of surveys, even when sample sizes are restricted. Typically, health-based survey development utilizes classical statistical techniques (e.g. reliability and factor analysis).
Sarah Depaoli +2 more
openaire +2 more sources
This study addresses the latent construct of attitudes toward environmental conservation based on study participant’s responses. We measured and evaluated the latent scale based on an 18-item scale instrument, over four experimental strata (N = 945)
Kostas Alexandridis
doaj +1 more source
Summary: Survival or apoptosis is a binary decision in individual cells. However, at the cell-population level, a graded increase in survival of colony-forming unit-erythroid (CFU-E) cells is observed upon stimulation with erythropoietin (Epo).
Lorenz Adlung +10 more
doaj +1 more source
Equating Tests Under the Graded Response Model [PDF]
The Stocking and Lord (1983) procedure for computing equating coefficients for tests having dichotomously scored items is extended to the case of graded response items. A system of equations for obtaining the equating coefficients under Samejima's (1969, 1972) graded response model is derived.
openaire +2 more sources
Graded lattice structures have been paid wide attention in the engineering and biological fields due to their excellent energy absorption capacity and variable porosity characteristics.
Long Bai +9 more
doaj +1 more source
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source

