A student’s performance in school is influenced by personal characteristics, but also, amongst other influences, by those of his or her schoolmates. Schoolmates can motivate and help each other overcome learning difficulties; but they can also disrupt instruction, require disproportionate...

Les résultats scolaires des élèves sont influencés par leurs caractéristiques personnelles, mais aussi, entre autres facteurs, par celles des autres élèves de leur établissement. Les camarades d’école peuvent se motiver et s’entraider pour surmonter les difficultés...

Because of the regulations concerning school entry in most school systems, a child’s date of birth may significantly affect his or her age at entry into school, and thus their first experience of schooling. Using data from the Programme for International Student Assessment (PISA), this paper...