Results 61 to 70 of about 13,591,879 (306)

Developments in Measurement of Persons and Items by Means of Item Response Models

Behaviormetrika, 2001
Summary: This paper starts with a general introduction into measurement of hypothetical constructs typical of the social and behavioral sciences. After the stages ranging from theory through operationalization and item domain to preliminary test or questionnaire have been treated, the general assumptions of item response theory are discussed.
openaire   +3 more sources

Safety of Daprodustat for the Treatment of Chronic Kidney Disease Anemia: Final Analysis of a Multicenter Postmarketing Surveillance Study in Japan

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This final analysis of a multicenter, prospective postmarketing surveillance study evaluated the safety of daprodustat in patients with chronic kidney disease anemia in routine clinical practice in Japan. Methods Patients who initiated daprodustat between September 2020 and July 2022 were registered.
Tadao Akizawa, Kyomi Kanaya, Kiyomi Aizawa, Masanori Onoki, Hirofumi Ozeki, Kazuko Suzuki, Ai Hayashi, Tomohiko Asamura   +7 more
wiley   +1 more source

Evaluation of covariate effects in item response theory models

CPT: Pharmacometrics & Systems Pharmacology
Item response theory (IRT) models are usually the best way to analyze composite or rating scale data. Standard methods to evaluate covariate or treatment effects in IRT models do not allow to identify item‐specific effects.
Gustaf J. Wellhagen, Ashraf Yassen, Dirk Garmann, Astrid Bröker, Alexander Solms, Yang Zhang, Maria C. Kjellsson, Mats O. Karlsson   +7 more
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source

Comparison of item characteristic analysis models of reading literacy test with polytomous Item Response Theory

REID (Research and Evaluation in Education)
This study aims to compare the analysis model of the characteristics of reading literacy items with the polytomous item response theory, which uses the Graded Response Model (GRM), Partial Credit Model (PCM), Generalized Partial Credit Model (GPCM), and ...
Firyal Nabila Harsana, Heri Retnawati, Septinda Rima Dewanti, Rogers Andrew Lumenyela, Rimajon Sotlikova, Maulana Fatahillah Adzima, Atut Reni Septiana   +6 more
doaj   +1 more source

Understanding the reliability of citizen science observational data using item response models

Methods in Ecology and Evolution, 2021
Citizen science projects have become increasingly popular in many fields, including ecology. However, the quality of this information is frequently debated within the scientific community. Modern citizen science implementations therefore require measures
Edgar Santos‐Fernandez, Kerrie Mengersen   +1 more
doaj   +1 more source

An item response model for the experimental design

The Japanese journal of psychology, 2003
In recent years, we see many examples of applying item response theory to psychological questionnaires. There are various conditions under which psychological tests are administered. Often, we are interested in the subjects' latent traits in the context of experimental design.
openaire   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Item response models to measure corporate social responsibility [PDF]

Applied Financial Economics, 2014
Corporate Social Responsibility (CSR) is a multidimensional con-\ud cept that involves several aspects, ranging from Environment, to Social\ud and Governance. Companies aiming to comply with CSR standards\ud have to face challenges that vary from one aspect to the other and\ud from one industry to the other.
NICOLOSI, MARCO, GRASSI, STEFANO, STANGHELLINI, Elena   +2 more
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source