RT Conference Proceedings T1 The influence of weekly instruction and homework time on students' academic performance A1 López-Agudo, Luis Alejandro A1 Marcenaro-Gutiérrez, Óscar David K1 Estudiantes--rendimiento K1 Enseñanza primaria AB ObjectiveStudents’ use of time and its effective use are of high relevance for their learning and, because of that, this is an issue which has been placed at the core of the education debate. In the present study we intend to check whether both instruction and homework time are contributing to improve students’ competences or not.Data and methodologyIn order to approach this issue, we have employed Trends in Mathematics and Science Study (TIMSS) 2019 data, focusing on 4th grade students in 58 countries. Our intention is to go beyond correlation and approach causality as much as possible so, for this purpose, we employ student fixed-effects within-students between-subjects.ResultsOur main findings show that weekly instruction and homework time present a null influence on students’ competences in most of the countries under analysis, while they also present a low positive one in some of them.ConclusionsThe most likely explanation for these results may be that TIMSS measures students’ competences, which are related to the abilities that students use in their daily life, and not to content-based knowledge, which is more related to memorisation or to mechanical tasks. Therefore, this instruction and homework time may not be helping students to improve their competences. YR 2022 FD 2022-01 LK https://hdl.handle.net/10630/23736 UL https://hdl.handle.net/10630/23736 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026