Evaluating Gender Bias of LLMs in Making Morality Judgements

Fuente: arXiv
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Autori principali: Bajaj, Divij, Lei, Yuanyuan, Tong, Jonathan, Huang, Ruihong
Natura: Preprint
Pubblicazione: 2024
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author Bajaj, Divij
Lei, Yuanyuan
Tong, Jonathan
Huang, Ruihong
author_facet Bajaj, Divij
Lei, Yuanyuan
Tong, Jonathan
Huang, Ruihong
contents Large Language Models (LLMs) have shown remarkable capabilities in a multitude of Natural Language Processing (NLP) tasks. However, these models are still not immune to limitations such as social biases, especially gender bias. This work investigates whether current closed and open-source LLMs possess gender bias, especially when asked to give moral opinions. To evaluate these models, we curate and introduce a new dataset GenMO (Gender-bias in Morality Opinions) comprising parallel short stories featuring male and female characters respectively. Specifically, we test models from the GPT family (GPT-3.5-turbo, GPT-3.5-turbo-instruct, GPT-4-turbo), Llama 3 and 3.1 families (8B/70B), Mistral-7B and Claude 3 families (Sonnet and Opus). Surprisingly, despite employing safety checks, all production-standard models we tested display significant gender bias with GPT-3.5-turbo giving biased opinions in 24% of the samples. Additionally, all models consistently favour female characters, with GPT showing bias in 68-85% of cases and Llama 3 in around 81-85% instances. Additionally, our study investigates the impact of model parameters on gender bias and explores real-world situations where LLMs reveal biases in moral decision-making.
format Preprint
id arxiv_https___arxiv_org_abs_2410_09992
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Evaluating Gender Bias of LLMs in Making Morality Judgements
Bajaj, Divij
Lei, Yuanyuan
Tong, Jonathan
Huang, Ruihong
Computation and Language
Large Language Models (LLMs) have shown remarkable capabilities in a multitude of Natural Language Processing (NLP) tasks. However, these models are still not immune to limitations such as social biases, especially gender bias. This work investigates whether current closed and open-source LLMs possess gender bias, especially when asked to give moral opinions. To evaluate these models, we curate and introduce a new dataset GenMO (Gender-bias in Morality Opinions) comprising parallel short stories featuring male and female characters respectively. Specifically, we test models from the GPT family (GPT-3.5-turbo, GPT-3.5-turbo-instruct, GPT-4-turbo), Llama 3 and 3.1 families (8B/70B), Mistral-7B and Claude 3 families (Sonnet and Opus). Surprisingly, despite employing safety checks, all production-standard models we tested display significant gender bias with GPT-3.5-turbo giving biased opinions in 24% of the samples. Additionally, all models consistently favour female characters, with GPT showing bias in 68-85% of cases and Llama 3 in around 81-85% instances. Additionally, our study investigates the impact of model parameters on gender bias and explores real-world situations where LLMs reveal biases in moral decision-making.
title Evaluating Gender Bias of LLMs in Making Morality Judgements
topic Computation and Language
url https://arxiv.org/abs/2410.09992