Results 21 to 30 of about 44,820 (294)

Towards cooperative management of fatigue and vigilance in railway operations [PDF]

open access: yesITM Web of Conferences
Professional drivers face fatigue and decrease of vigilance over the long driving sessions paving their everyday life. This naturally occurring phenomenon is acknowledged and preventive measures, adapted to the vehicles and missions, are deployed around ...
Berdal Quentin   +2 more
doaj   +1 more source

Automating Simulation Research for Item Response Theory using R

open access: yesInternational Journal of Assessment Tools in Education, 2018
A simulation study is a useful tool in examininghow validly item response theory (IRT) models can be applied in various settings.Typically, a large number of replications are required to obtain the desired precision.However, many standard software ...
Sunbok Lee   +2 more
doaj   +1 more source

Item Response Models for Forced-Choice Questionnaires: A Common Framework [PDF]

open access: yes, 2016
In forced-choice questionnaires, respondents have to make choices between two or more items presented at the same time. Several IRT models have been developed to link respondent choices to underlying psychological attributes, including the recent MUPP ...
Brown, Anna
core   +1 more source

A LINEAR LOGISTIC TEST MODEL (LLTM) APPLICATION IN FOREIGN LANGUAGE TESTING [PDF]

open access: yesIstraživanja u Pedagogiji
This study applies the Linear Logistic Test Model (LLTM) to the reading comprehension subtest of an English certification exam developed by the Foreign Language Assessment Program (PELEx, for its acronym in Spanish).
Jose Fabián Elizondo-González   +1 more
doaj   +1 more source

Interactions between microstructure and fatigue crack growth in αβ titanium alloy [PDF]

open access: yesMATEC Web of Conferences, 2020
In a context of optimization of the crack propagation resistance properties in αβ titanium alloys, this work aim to explore interactions between microstructure and deformation at crack tip in lamellar titanium alloy, especially regarding to the ...
Renon Vincent   +4 more
doaj   +1 more source

Item Response Modeling of Forced-Choice Questionnaires [PDF]

open access: yes, 2011
Multidimensional forced-choice formats can significantly reduce the impact of numerous response biases typically associated with rating scales. However, if scored with classical methodology, these questionnaires produce ipsative data, which lead to ...
Alberto Maydeu-Olivares   +3 more
core   +1 more source

Help! I Need a Remote Guide in My Mixed Reality Collaborative Environment

open access: yesFrontiers in Robotics and AI, 2019
The help of a remote expert in performing a maintenance task can be useful in many situations, and can save time as well as money. In this context, augmented reality (AR) technologies can improve remote guidance thanks to the direct overlay of 3D ...
Morgan Le Chénéchal   +7 more
doaj   +1 more source

Мониторинг субъективного благополучия в школе: оценка в рамках современной теории тестирования

open access: yesМониторинг общественного мнения: экономические и социальные перемены, 2022
Тема субъективного благополучия находится в фокусе внимания исследователей и практиков, однако наблюдается нехватка инструментов оценивания субъективного благополучия с подтвержденной валидностью и надежностью, которые позволяли бы проводить ...
Татьяна Николаевна Канонир   +2 more
doaj   +1 more source

HIGH TEMPERATURE OXIDATION OF TI-6AL-4V ALLOY FABRICATED BY ADDITIVE MANUFACTURING. INFLUENCE ON MECHANICAL PROPERTIES [PDF]

open access: yesMATEC Web of Conferences, 2020
Titanium alloys, such as Ti-6Al-4V alloy, fabricated by additive manufacturing processes is a winning combination in the aeronautic field. Indeed, the high specific mechanical properties of titanium alloys with the optimized design of parts allowed by ...
CASADEBAIGT Antoine   +2 more
doaj   +1 more source

DFT-based low-complexity optimal cell ID estimation in NB-IoT

open access: yesEURASIP Journal on Advances in Signal Processing, 2020
This paper deals with cell identifier (ID) estimation for narrowband-Internet of things (NB-IoT) system. It is suggested to transform the usual maximum likelihood (ML) estimator expression in order to highlight a discrete Fourier transform (DFT), which ...
Vincent Savaux
doaj   +1 more source

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