Results 31 to 40 of about 10,543,697 (281)

Joint Testlet Cognitive Diagnosis Modeling for Paired Local Item Dependence in Response Times and Response Accuracy

open access: yesFrontiers 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
doaj   +1 more source

Learning Latent and Hierarchical Structures in Cognitive Diagnosis Models

open access: yesPsychometrika, 2023
Cognitive Diagnosis Models (CDMs) are a special family of discrete latent variable models that are widely used in educational and psychological measurement. A key component of CDMs is the Q-matrix characterizing the dependence structure between the items and the latent attributes.
Chenchen Ma, Jing Ouyang, Gongjun Xu
openaire   +3 more sources

cdcatR: An R Package for Cognitive Diagnostic Computerized Adaptive Testing

open access: yesPsych, 2021
Cognitive diagnosis models (CDMs) are confirmatory latent class models that provide fine-grained information about skills and cognitive processes. These models have gained attention in the last few years because of their usefulness in educational and ...
Miguel A. Sorrel   +2 more
doaj   +1 more source

Validation of the German Revised Addenbrooke's Cognitive Examination for Detecting Mild Cognitive Impairment, Mild Dementia in Alzheimer's Disease and Frontotemporal Lobar Degeneration [PDF]

open access: yes, 2010
Background/Aims: The diagnostic accuracy of the German version of the revised Addenbrooke's Cognitive Examination (ACE-R) in identifying mild cognitive impairment (MCI), mild dementia in Alzheimer's disease (AD) and mild dementia in frontotemporal lobar ...
Aguilar, C. A.   +26 more
core   +1 more source

The association of socio-economic and psychological factors with limitations in day-to-day activity over 7 years in newly diagnosed osteoarthritis patients

open access: yesScientific Reports, 2022
Previous research has established links between chronic pain and impaired cognitive ability, as well as between chronic pain and anxiety, in osteoarthritis.
Afroditi Kouraki   +3 more
doaj   +1 more source

Cognitive and behavioural predictors of survival in Alzheimer disease:results from a sample of treated patients in a tertiary-referral memory clinic [PDF]

open access: yes, 2011
OBJECTIVE: This study examined the influence of cognitive and non-cognitive factors at the time of diagnosis on the survival of patients with treated probable Alzheimer Disease (AD).METHODS: Consecutive patients seen at a regional, tertiary-referral ...
Russ, Tom C; id_orcid   +5 more
core   +1 more source

The use of biomarkers for the etiologic diagnosis of MCI in Europe: an EADC survey [PDF]

open access: yes, 2014
We investigated the use of Alzheimer's disease (AD) biomarkers in European Alzheimer's Disease Consortium centers and assessed their perceived usefulness for the etiologic diagnosis of mild cognitive impairment (MCI).
Erikdotter, M   +197 more
core   +1 more source

BNMI-DINA: A Bayesian Cognitive Diagnosis Model for Enhanced Personalized Learning

open access: yesBig Data and Cognitive Computing, 2023
In the field of education, cognitive diagnosis is crucial for achieving personalized learning. The widely adopted DINA (Deterministic Inputs, Noisy And gate) model uncovers students’ mastery of essential skills necessary to answer questions correctly ...
Yiming Chen, Shuang Liang
doaj   +1 more source

Structure and correlates of cognitive aging in a narrow age cohort [PDF]

open access: yes, 2014
Aging-related changes occur for multiple domains of cognitive functioning. An accumulating body of research indicates that, rather than representing statistically independent phenomena, aging-related cognitive changes are moderately to strongly ...
Deary, Ian J   +3 more
core   +1 more source

Integrating Temporal Information Into Knowledge Tracing: A Temporal Difference Approach

open access: yesIEEE Access, 2018
Bayesian knowledge tracing (BKT), which is used to diagnose examinees' knowledge state quantitatively, plays an important role in intelligent tutoring systems.
Junhu Zhu   +3 more
doaj   +1 more source

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