Results 71 to 80 of about 1,081,470 (322)
A practical guide to item bank calibration with multiple matrix sampling
International Journal of Assessment Tools in EducationWhen it is required to estimate item parameters of a large item bank, Multiple Matrix Sampling (MMS) design provides an efficient way while minimizing the test burden on students. The current study exemplifies how to calibrate a large item pool using MMS
Güneş Ertaş +2 more
doaj +1 more source
Item response theory in educational assessment and evaluation
Mesure et Évaluation en Éducation, 2008 Item response theory provides a useful and theoretically well-founded framework for educational measurement. It supports such activities as the construction of measurement instruments, linking and equating measurements, and evaluation of test bias and ...
Cees A.W. Glas
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The Uniform Prior for Bayesian Estimation of Ability in Item Response Theory Models
International Journal of Assessment Tools in Education, 2020 ItemResponse Theory (IRT) models traditionally assume a normal distribution forability. Although normality is often a reasonable assumption for ability, it israrely met for observed scores in educational and psychological measurement.Assumptions ...
Tuğba Karadavut
doaj +1 more source
FEBS Letters, EarlyView.Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel +2 more
wiley +1 more source
Evaluation of psychometric properties and differential item functioning of 8-item Child Perceptions Questionnaires using item response theory [PDF]
, 2015 published_or_final_versio
Lam, KF +3 more
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ANALISIS RESPONS BUTIR PADA TES BAKAT SKOLASTIK
Jurnal Psikologi Undip, 2018 This study aims to analyze the characteristics of the Scholastic Aptitude Test (SAT), consisting of both verbal and numerical subtests. We used a descriptive quantitative approach by describing the characteristics of SAT based on the degree of item ...
Farida Agus Setiawati +2 more
doaj +1 more source
Evolutionary interplay between viruses and R‐loops
FEBS Letters, EarlyView.Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi +4 more
wiley +1 more source
A Comparison of Classical Test Theory and Nonparametric Item Response Theory with Respect to the Effects of Testees’ Characteristics on Item Characteristics and vice versa [PDF]
فصلنامه نوآوریهای آموزشی, 2006 This study aimed at comparing Classical Test Theory and Nonparametric Item Response Theory with respect to the effect of testees’ characteristics on item characteristics and vice versa. The research method was of the applied, descriptive type.
Ali delavar +2 more
doaj
Single‐cell insights into the role of T cells in B‐cell malignancies
FEBS Letters, EarlyView.Single‐cell technologies have transformed our understanding of T cell–tumor cell interactions in B‐cell malignancies, revealing new T‐cell subsets, functional states, and immune evasion mechanisms. This Review synthesizes these findings, highlighting the roles of T cells in pathogenesis, progression, and therapy response, and underscoring their ...
Laura Llaó‐Cid
wiley +1 more source
, 2009 Computerized adaptive testing is becoming increasingly popular due to advancement of modern computer technology. It differs from the conventional standardized testing in that the selection of test items is tailored to individual examinee's ability level.
Chang, Hua-Hua, Ying, Zhiliang
core +1 more source