Are Large Language Models Good Essay Graders?

• URL: http://arxiv.org/abs/2409.13120v1
• Date: Thu, 19 Sep 2024 23:20:49 GMT
• Title: Are Large Language Models Good Essay Graders?
• Authors: Anindita Kundu, Denilson Barbosa,
• Abstract summary: We evaluate Large Language Models (LLMs) in assessing essay quality, focusing on their alignment with human grading. We compare the numeric grade provided by the LLMs to human rater-provided scores utilizing the ASAP dataset. ChatGPT tends to be harsher and further misaligned with human evaluations than Llama.
• Score: 4.134395287621344
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: We evaluate the effectiveness of Large Language Models (LLMs) in assessing essay quality, focusing on their alignment with human grading. More precisely, we evaluate ChatGPT and Llama in the Automated Essay Scoring (AES) task, a crucial natural language processing (NLP) application in Education. We consider both zero-shot and few-shot learning and different prompting approaches. We compare the numeric grade provided by the LLMs to human rater-provided scores utilizing the ASAP dataset, a well-known benchmark for the AES task. Our research reveals that both LLMs generally assign lower scores compared to those provided by the human raters; moreover, those scores do not correlate well with those provided by the humans. In particular, ChatGPT tends to be harsher and further misaligned with human evaluations than Llama. We also experiment with a number of essay features commonly used by previous AES methods, related to length, usage of connectives and transition words, and readability metrics, including the number of spelling and grammar mistakes. We find that, generally, none of these features correlates strongly with human or LLM scores. Finally, we report results on Llama 3, which are generally better across the board, as expected. Overall, while LLMs do not seem an adequate replacement for human grading, our results are somewhat encouraging for their use as a tool to assist humans in the grading of written essays in the future.

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