Verdugo Guamán, M., Cabrera Ortiz, F., Cabrera Tenecela, H., & Reyes Guaranda, M. (2026). Improving Academic Performance in the Lowest Quartile: A Multilevel Analysis of a Remedial Intervention in Ecuadorian Public Schools. Journal Of Curriculum Studies Research, 8(2), 290-317. https://doi.org/10.46303/jcsr.2026.34