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October 2, 2025ElectronicsOpen Access

A Joint Diagnosis Model Using Response Time and Accuracy for Online Learning Assessment

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Analysis reveals a new cognitive diagnosis model that improves prediction in online education, indicating enhanced skill assessment.

The proposed RT-CDM integrates response time with accuracy data, enhancing skill diagnosis.
In simulations, RT-CDM showed superior predictive performance and efficient parameter recovery.
Evaluations against classical models like DINA and neural CDMs highlight RT-CDM's interpretability and effectiveness.
Data from multiple sources, including PISA 2015, supports the model's robustness and applicability in various settings.

Li et al. (2025) studied this question.

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