The aim of the study is to establish an analytical relationship between education and training policies, school organisation models, types of leadership and educational achievement/failure, analysing the institutional and organisational contexts in basic and secondary education and weighting their impact on the schools’ results (particularly in terms of levels of educational achievement/failure). It will also include an analysis of dropouts as a form of educational failure (although with different contours) or with regard to mechanisms used by schools to deal with it by, namely, referring students to alternative forms of learning.