Quelques réflexions méthodologiques à propos des enquêtes internationales dans le domaine de l'éducation
This article aims to show by means of three examples taken from the analysis of the results of the OECD Programme de Suivi des Acquis des Elèves (PISA 2000) the impact of certain methodological choices on the results obtained. More precisely, we shall deal with the consequences of i) the form of the answers (open or closed) on the boys' and girls' success rates, ii) the definition of the targeted populations (one given year of study vs the pupils of a given age) on the differences observed between the educational institutions and iii) the way of defining the concept of "immigrant" on the resultts of pupils who were born of not born in the country where they were tested.