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Are Exam Questions Known in Advance? Using Local Dependence to Detect Cheating. [PDF]
PLoS ONE, 2016 Cheating is a common phenomenon in high stakes admission, licensing and university exams and threatens their validity. To detect if some exam questions had been affected by cheating, we simulated how data would look like if some test takers possessed ...
Stefan Zimmermann +2 more
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Frontiers in Psychology, 2018 In joint models for item response times (RTs) and response accuracy (RA), local item dependence is composed of local RA dependence and local RT dependence. The two components are usually caused by the same common stimulus and emerge as pairs.
Peida Zhan, Manqian Liao, Yufang Bian
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Local dependence in random graph models: characterization, properties and statistical inference. [PDF]
J Am Stat Assoc, 2015 Schweinberger M, Handcock MS.
europepmc +2 more sources
The Unit Testlet Dilemma: PISA Sample
International Journal of Assessment Tools in Education, 2021 Testlets have advantages such as making it possible to measure higher-order thinking skills and saving time, which are accepted in the literature. For this reason, they have often been preferred in many implementations from in-class assessments to large ...
Cansu Ayan, Fulya Barış Pekmezci
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Item parameter recovery via traditional 2PL, Testlet and Bi-factor models for Testlet-Based tests
International Journal of Assessment Tools in Education, 2022 The testlet comprises a set of items based on a common stimulus. When the testlet is used in the tests, there may violate the local independence assumption, and in this case, it would not be appropriate to use traditional item response theory models in ...
Esin Yılmaz Koğar, Sümeyra Soysal
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Parameter Estimation of KST-IRT Model under Local Dependence
Psych, 2023 A mantra often repeated in the introductory material to psychometrics and Item Response Theory (IRT) is that a Rasch model is a probabilistic version of a Guttman scale. The idea comes from the observation that a sigmoidal item response function provides
Sangbeak Ye +2 more
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Food Production and Consumption in Ordos of Inner Mongolia
Foods, 2023 Ordos is an ecological fragile area in the upstream and midstream of the Yellow River and a component of the ecological security barrier on the northern frontier of China. With population growth in recent years, the contradiction between human beings and
Yexuan Liu, Lin Zhen, Yunfeng Hu
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Nonparametric Directional Dependence Estimation and Its Application to Cryptocurrency
Axioms, 2023 This paper proposes a nonparametric directional dependence by using the local polynomial regression technique. With data generated from a bivariate copula having a nonmonotone regression structure, we show that our nonparametric directional dependence is
Hohsuk Noh +3 more
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The role of path-dependence in the local economic transformation [PDF]
Zbornik Radova: Geografski institut "Jovan Cvijić", 2015 The examination focuses on the issue of path-dependence, which is considered to be the core concept of evolutionary economic geography emphasizing the importance of historical development.
Lengyel István Máté, Molnár Ernő
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Global polarization and spin alignment measurements [PDF]
EPJ Web of Conferences, 2022 Recent experimental results on global polarization of hyperons and spin alignment of vector mesons in heavy-ion collisions are reviewed, especially in context of the energy dependence and particle species dependence.
Niida Takafumi
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