arXiv Computation and Language By Vera Neplenbroek, Arianna Bisazza, Raquel Fern\'andez

MBBQ: A Dataset for Cross-Lingual Comparison of Stereotypes in Generative LLMs

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MBBQ (Multilingual Bias Benchmark for Question-answering) is a curated extension of the English BBQ dataset that includes Dutch, Spanish, and Turkish, designed to measure stereotypes across these languages while controlling for cultural differences and task accuracy. The dataset also provides a parallel control set to assess question-answering performance independently of bias. Experiments with several open-source and proprietary LLMs show that non‑English languages can exhibit greater bias than English, and cross‑lingual bias differences persist except in the most accurate models.

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