Dataset Card for EusExams-v2

EusExams-v2 is an updated and refined collection of tests designed to prepare individuals for Public Service examinations conducted by several Basque institutions, including the public health system Osakidetza, the Basque Government, the City Councils of Bilbao and Gasteiz, and the University of the Basque Country (UPV/EHU). Within each of these groups, there are different exams for public positions, such as administrative and assistant roles. Each multiple-choice question contains 2 to 4 choices and one correct answer.

Modifications in V2

This new version introduces several key improvements over the original EusExams dataset:

• Deduplication: Identical questions across different exams within the same category have been deduplicated to prevent leakage and redundancy.
• Null Filtering: Questions missing valid answers have been removed to ensure the dataset is robust for QA evaluation.
• Grouping: We have reorganized numerous granular test files into 4 high-level domains: council, government, health, and university.
• Provenance Tracking: Added ids and links fields to each question to maintain visibility of the original exams they appeared in.
• New Data: Added the 2026 health exams in Spanish, which accounts for the larger discrepancy in size between the es and eu subsets in the health category.

Dataset Statistics

The dataset contains a total of 27,442 unique questions, distributed across the two languages and domains as follows:

Domain	Spanish (es)	Basque (eu)
Council	928	895
Government	2,530	2,531
Health	11,387	6,351
University	1,459	1,361
Total	16,304	11,138

• Curated by: HiTZ Research Center & IXA Research group (University of the Basque Country UPV/EHU)
• Language(s) (NLP): Basque (eu)
• 📒 Blog Post: Latxa: An Open Language Model and Evaluation Suite for Basque
• 📖 Paper: Latxa: An Open Language Model and Evaluation Suite for Basque
• 💻 Code: hitz-zentroa/latxa
• 📧 Contact: hitz@ehu.eus

Example

Basque Example:

{
  "question": "UPV/EHUREN ONDAREA HAU DA:",
  "candidates": [
    "UPV/EHUk jabetzan dituen ondasunak.",
    "UPV/EHUk jabetzan dituen ondasun eta eskubideak.",
    "UPV/EHUk jabetzan edo titularitatean dituen ondasun eta eskubideak, bai eta etorkizunean eskuratzen edo esleitzen zaizkion gainerako guztiak ere.",
    "UPV/EHUk jabetzan dituen ondasunak, bai eta etorkizunean eskuratzen dituen gainerako guztiak ere."
  ],
  "answer": 2,
  "ids": ["opeehuadmineu", "opeehuauxeu"],
  "links": ["https://www.kaixo.com/opeehu/index.php?aukera=opeehuadmineu&hizk=2&num=1", "https://www.kaixo.com/opeehu/index.php?aukera=opeehuauxeu&hizk=2&num=1"]
}

English Translation:

Question: UPV/EHU’S LEGACY IS: 
A. The property owned by UPV/EHU. 
B. The rights and property owned by the UPV/EHU. 
C. The rights and property of the UPV/EHU in ownership, as well as any other property acquired or assigned to it in the future. 
D. The property of the UPV/EHU in ownership, as well as any other property acquired or assigned to it in the future. 
Answer: C

Citation

@misc{etxaniz2024latxa,
      title={{L}atxa: An Open Language Model and Evaluation Suite for {B}asque}, 
      author={Julen Etxaniz and Oscar Sainz and Naiara Perez and Itziar Aldabe and German Rigau and Eneko Agirre and Aitor Ormazabal and Mikel Artetxe and Aitor Soroa},
      year={2024},
      eprint={},
      archivePrefix={arXiv},
      primaryClass={cs.CL}
}