Results 51 to 60 of about 1,237 (160)
Abstract In Welsh, in certain tenses, unique forms of the verb for ‘be’ are used in positive clauses. These specialised forms of ‘be’ are incompatible with positive main‐clause declarative complementizers, despite their apparent featural compatibility. For most speakers, they are also blocked from if‐clauses; although, I report on data regarding their ...
Frances Dowle
wiley +1 more source
A Group Fit Statistic for the Multilevel Item Response Model
Abstract Aberrant behaviors among test‐takers in large‐scale assessments are often more prevalent within specific groups or testing sites. While various techniques have been developed to detect individual‐level test‐takers' aberrant behaviors, research in detecting those behaviors at the group level is rare. We propose a group fit statistic lz2$ l_{z2}$
Yishan Ding, Ji Seung Yang, Youngjin Han
wiley +1 more source
SIMEX-Based and Analytical Bias Corrections in Stocking–Lord Linking
Stocking–Lord (SL) linking is a popular linking method for group comparisons based on dichotomous item responses. This article proposes a bias correction technique based on the simulation extrapolation (SIMEX) method for SL linking in the 2PL model in ...
Alexander Robitzsch
doaj +1 more source
Improving Ability Estimation Accuracy for Automated Item Generated Forms under Multistage Testing
Abstract The emergence of automated item generation (AIG) techniques has intensified discussions around their application in assessment development. Some testing companies have already begun developing software to construct exams using AIG. However, the current literature offers limited insights into the characteristics of items generated through AIG ...
Stella Y. Kim, Won‐Chan Lee
wiley +1 more source
What about Tests Make Students Switch Off? Item‐Level Predictors of Disengagement on the PISA
Abstract International assessments, such as the Programme for International Student Assessment (PISA), play a critical role in monitoring educational progress, evaluating teaching effectiveness, and supporting institutional accountability. The validity of these interpretations rests on the assumption that students exert sufficient effort and perform to
Juste M. Mehou, Brian C. Leventhal
wiley +1 more source
Information-Weighted and Normal Density-Weighted Haebara Linking
Linking methods based on item response theory aim to place item parameters from different groups, test forms, or test administrations onto a common scale.
Alexander Robitzsch
doaj +1 more source
This study investigates the longitudinal linking of dichotomous item responses at three time points, focusing on the performance of Haberman linking, Haebara linking, Stocking-Lord linking, and concurrent calibration in the presence of item parameter drift (IPD). Two general linking approaches, joint and chain linking, are examined.
Oskar Engels +2 more
openaire +1 more source
ABSTRACT Background and Aims The Japanese Disaster Prevention Consciousness Scale (J‐DPCS) addresses all natural disasters, making it more adaptable to foreign populations. However, certain items in the scale refer to disaster preparedness measures which may not be emphasized in countries where infrastructure development for disaster prevention is less
Naomi Akiyama +4 more
wiley +1 more source
Uniform Circular Array Antenna for Dual‐Mode Orbital Angular Momentum Generation at 6 GHz
Orbital angular momentum (OAM) antennas have recently attracted attention for their potential to enhance communication capacity and and robustness against interference. However, most existing designs rely on complex multilayer feed structures. This work presents a compact, single‐layer, series‐fed dual‐mode OAM antenna composed of four patches arranged
Abdulkadir Uzun +2 more
wiley +1 more source
Bias-Corrected Root Mean Square Deviation Estimators
The root mean square deviation (RMSD) is a widely used item fit statistic in item response models. However, the sample RMSD is known to exhibit positive bias in small samples. To address this, seven alternative bias-corrected RMSD estimators are proposed
Alexander Robitzsch
doaj +1 more source

