Results 131 to 140 of about 3,216,591 (304)
Rasch analysis of the self efficacy (SE-12) questionnaire measuring clinical communication skills
PEC InnovationObjective: The aim of this study was to examine the construct validity and reliability of the Self Efficacy (SE-12) questionnaire using Rasch analysis. Methods: The SE-12 was administered to Danish health care professionals prior to their participation ...
Kaj Sparle Christensen, Jette Ammentorp
doaj +1 more source
Psychometrics With R: A Review Of CRAN Packages For Item Response Theory [PDF]
, 2013 In this paper we review the current state of R packages for Item Response Theory (IRT). We group the available packages based on their purpose and provide an overview of each package's main functionality.
Mair, Patrick +2 more
core
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Item-fit evaluation in biased tests: a study under Rasch model
Item-fit statistics, Rasch model, Differential item functioning, Type I error rate, Power rate,
M. Hidalgo, José López-Pina
core +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
SAGE OpenThis study aims to examine the efficiency of Rasch Copula and Bayesian Rasch Testlet to evaluate a cloze test by fixing local dependence (LD). The number of factors is 10, as detected by statistical methods, or 1, as detected by machine learning methods.
Changjie Liu +2 more
doaj +1 more source
Psychometric evaluation of the self-undermining scale in South Africa using the Rasch model
African Journal of Psychological AssessmentThe self-undermining scale is used to assess employee behaviours that undermine job performance, including making mistakes, creating conflict, creating confusion and creating a backlog in work tasks.
Sergio L. Peral
doaj +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
Drug and Alcohol Dependence ReportsBackground: Financial barriers are a major obstacle to engagement in medication treatment for opioid use disorder (OUD), contributing to poor adherence, reduced quality of life, and psychological distress.
Precious Anyanwu +8 more
doaj +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source