RT Journal Article T1 The Relative Age Effects in Educational Development: A Systematic Review A1 Urruticoechea, Alar A1 Oliveri, Andrés A1 Vernazza, Elena A1 Gimenez Dasi, Marta Aranzazu A1 Martínez Arias, Rosario A1 Martín Babarro, Javier AB There is a large number of variables, studied in the literature, that affect the integral development of students in the educational stage, but few research analyze the effects that relative age can have on development. The aim of this study is to review and summarize the results obtained, on this subject, in recent research. The methodology used has followed the PRISMA declaration. The final sample is composed by 21 articles, which use data from 24 countries and 32 assessments. The main conclusions indicate that relatively younger children in same class groups: (a) obtain significantly lower mean scores in cognitive and motor tests, (b) have a higher repetition rate, and (c) have a less capacity of socialization. Finally, it should be noted that considering the results obtained by the research on relative age effect on child development, some authors propose to adapt educational practices to minimize these effects. PB MPDI SN 1660-4601 YR 2021 FD 2021-08-26 LK https://hdl.handle.net/20.500.14352/4774 UL https://hdl.handle.net/20.500.14352/4774 LA eng NO Agencia Nacional de Investigación (ANII) DS Docta Complutense RD 2 may 2024