Service-learning as a strategy to prevent online hate speech perpetration in secondary education Cedena de Lucas, Beatriz Amate-García, Mar Arco Tirado, José Luis Fernández Martín, Francisco Domingo Service-Learning Online hate speech Secondary school students The authors declare having received financial support for the implementation of this program, including their research and/or authorship of this article. This work was supported by the Ministry of Social Affairs, Consumption, and Agenda 2030 (Government of Spain) under the title: “Prevention of hate speech in secondary schools: a research proposal based on service-learning”. This paper reports on the impact of a service-learning program to prevent online hate speech perpetration among students in secondary education. Developed by the Spanish Volunteering Platform, the three months intervention used a quasi-experimental with cluster randomization design with 74 students (aged 13.28 ± 0.36 years) from a public high school in Madrid, Spain. Multivariate regression (Model 10) showed significant effects for coping skills (β = -0.974, p < 0.05) and LGTBI phobia (β = 0.631, p < 0.05), with an R-square of 50.9 and an adjusted R-square of 42.7, with a moderate effect size (d = 0.33). It is recommended that service-learning programs be implemented and adapted in school settings as an effective strategy to prevent online hate speech perpetration among secondary school students, emphasizing the need to strengthen methodological rigor and expand the reach of such interventions to maximize their impact. 2026-02-16T12:02:28Z 2026-02-16T12:02:28Z 2026 journal article Published version: Cedena de Lucas, B.; Amate-García, M.; Arco Tirado, J. L. y Fernández Martín, F. D. (2026). Service-learning as a strategy to prevent online hate speech perpetration in secondary education. International Journal of Educational Research Volume 137, 2026, 102964. https://doi.org/10.1016/j.ijer.2026.102964 0883-0355 1873-538X https://hdl.handle.net/10481/111037 10.1016/j.ijer.2026.102964 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier