LecEval: An Automated Metric for Multimodal Knowledge Acquisition in Multimedia Learning

Joy Lim Jia Yin; Daniel Zhang-Li; Jifan Yu; Haoxuan Li; Shangqing Tu; Yuanchun Wang; Zhiyuan Liu; Huiqin Liu; Lei Hou; Juanzi Li; Bin Xu

arXiv · 2505.02078

LecEval: An Automated Metric for Multimodal Knowledge Acquisition in Multimedia Learning

Joy Lim Jia Yin·Daniel Zhang-Li·Jifan Yu·Haoxuan Li·Shangqing Tu·Yuanchun Wang·Zhiyuan Liu·Huiqin Liu·Lei Hou·Juanzi Li·Bin Xu

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Abstract

Evaluating the quality of slide-based multimedia instruction is challenging. Existing methods like manual assessment, reference-based metrics, and large language model evaluators face limitations in scalability, context capture, or bias. In this paper, we introduce LecEval, an automated metric grounded in Mayer's Cognitive Theory of Multimedia Learning, to evaluate multimodal knowledge acquisition in slide-based learning. LecEval assesses effectiveness using four rubrics: Content Relevance (CR), Expressive Clarity (EC), Logical Structure (LS), and Audience Engagement (AE). We curate a large-scale dataset of over 2,000 slides from more than 50 online course videos, annotated with fine-grained human ratings across these rubrics. A model trained on this dataset demonstrates superior accuracy and adaptability compared to existing metrics, bridging the gap between automated and human assessments. We release our dataset and toolkits at https://github.com/JoylimJY/LecEval.

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BibTeX RIS

Joy Lim Jia Yin, Daniel Zhang-Li, Jifan Yu, Haoxuan Li, Shangqing Tu, Yuanchun Wang, Zhiyuan Liu, Huiqin Liu, Lei Hou, Juanzi Li, Bin Xu. 2025-05-04. LecEval: An Automated Metric for Multimodal Knowledge Acquisition in Multimedia Learning. https://arxiv.org/abs/2505.02078

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