Applying IRT to Distinguish Between Human and Generative AI Responses to Multiple-Choice Assessments

Fuente: arXiv
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Main Authors: Strugatski, Alona, Alexandron, Giora
Format: Preprint
Published: 2024
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author Strugatski, Alona
Alexandron, Giora
author_facet Strugatski, Alona
Alexandron, Giora
contents Generative AI is transforming the educational landscape, raising significant concerns about cheating. Despite the widespread use of multiple-choice questions in assessments, the detection of AI cheating in MCQ-based tests has been almost unexplored, in contrast to the focus on detecting AI-cheating on text-rich student outputs. In this paper, we propose a method based on the application of Item Response Theory to address this gap. Our approach operates on the assumption that artificial and human intelligence exhibit different response patterns, with AI cheating manifesting as deviations from the expected patterns of human responses. These deviations are modeled using Person-Fit Statistics. We demonstrate that this method effectively highlights the differences between human responses and those generated by premium versions of leading chatbots (ChatGPT, Claude, and Gemini), but that it is also sensitive to the amount of AI cheating in the data. Furthermore, we show that the chatbots differ in their reasoning profiles. Our work provides both a theoretical foundation and empirical evidence for the application of IRT to identify AI cheating in MCQ-based assessments.
format Preprint
id arxiv_https___arxiv_org_abs_2412_02713
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Applying IRT to Distinguish Between Human and Generative AI Responses to Multiple-Choice Assessments
Strugatski, Alona
Alexandron, Giora
Artificial Intelligence
Generative AI is transforming the educational landscape, raising significant concerns about cheating. Despite the widespread use of multiple-choice questions in assessments, the detection of AI cheating in MCQ-based tests has been almost unexplored, in contrast to the focus on detecting AI-cheating on text-rich student outputs. In this paper, we propose a method based on the application of Item Response Theory to address this gap. Our approach operates on the assumption that artificial and human intelligence exhibit different response patterns, with AI cheating manifesting as deviations from the expected patterns of human responses. These deviations are modeled using Person-Fit Statistics. We demonstrate that this method effectively highlights the differences between human responses and those generated by premium versions of leading chatbots (ChatGPT, Claude, and Gemini), but that it is also sensitive to the amount of AI cheating in the data. Furthermore, we show that the chatbots differ in their reasoning profiles. Our work provides both a theoretical foundation and empirical evidence for the application of IRT to identify AI cheating in MCQ-based assessments.
title Applying IRT to Distinguish Between Human and Generative AI Responses to Multiple-Choice Assessments
topic Artificial Intelligence
url https://arxiv.org/abs/2412.02713