Pitfalls in the assessment of higher education learning gains in Brazil through multilevel regression: handling the ceiling effectMarcos Estellita Lins, Musbah Koleilat Camara and Ana Luiza Lima de SouzaRAIRO-Oper. Res., 58 6 (2024) 4955-4969DOI: https://doi.org/10.1051/ro/2024208