Extended labelled dataset of 345 OER sentences with ethnic-bias annotations from 193 students

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Evidence · 5 claims (5 for) · 1 study (1 design), q2 · 1 of 1 report an effect size · 5 claims rest on one study

Description

A dataset released by Josmario Albuquerque and colleagues containing 345 contextualized OER sentences annotated by 193 higher-education students for perceived ethnic bias, with contextual metadata, aggregate labels, bias scores, and reproducibility code.

Components

Claims

• Linguistic and psycholinguistic features such as verb ratio and aggressiveness are positively correlated with perceived ethnic bias [+W]
• The naive Bayes model achieved the highest precision (0.75) for ethnic bias detection on the test set [+W]
• Social sciences content is positively correlated with perceived ethnic bias in text-based learning materials [+W]
• A stacking ensemble of LG, SVM, NB, KNN and XGB achieved the best fine-tuning F1-score (0.88), outperforming individual models such as SVM (0.86) [+W]
• SVM and random forest classifiers showed consistent performance in classifying ethnic bias, with F1-scores of 0.71 and 0.70 on the test set [+W]

Related Products and Programmes

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Key Sources

• Josmario Albuquerque, Bart Rienties, Martin Hlosta, Wayne Holmes. (2026). Learning Analytics to Uncover Ethnic Bias in Educational Texts: An Ensemble Learning Approach. Journal of Learning Analytics 13(1). https://doi.org/10.18608/jla.2026.8905

Page metadata

Field	Value
type	product
id	extended-labelled-dataset-of-345-oer-sentences-with-ethnic-bias-annotations-from-193-stude
title	Extended labelled dataset of 345 OER sentences with ethnic-bias annotations from 193 students
description	A dataset released by Josmario Albuquerque and colleagues containing 345 contextualized OER sentences annotated by 193 higher-education students for perceived ethnic bias, with contextual metadata, aggregate labels, bias scores, and reproducibility code.
status	review
moved_from	element/ethnic-bias-oer-labelled-dataset
product_kind	dataset
generated	by process:sweep-kinds on 2026-10-10
trust	unverified — no one has confirmed this page's content
sources	1 — josmario-albuquerque-2026

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