For several years, in Italian school there are fewer and fewer students; this trend is offset neither by the increase of schooling nor by the rise of students with an immigrant background. In addition to this issue, there is also the heavy problem of school dropout. Studies and researches on students achievement are therefore highly relevant because they may focus on their difficulties and strengths and could provide ideas and suggestions to help them.
This book collects six papers submitted during the V edition of the Seminar "INVALSI data: a tool for teaching and scientific research" held in Rome from 25th to 28th February 2021, with the aim of detecting which variables affect are determinant for a proper everybody's educational achievement stressing national INVALSI survey and other international ones.
As Statistical Service we hope this partnership could last and may generate many other research works.

Patrizia Falzetti, Technologist Director, she is the Head of the INVALSI Area of the Evaluation Research, of the SISTAN Statistical Office and of the INVALSI Statistical Service which manages data acquisition, analysis and return about both national and international surveys on learning (OECD and IEA). She coordinates and manages the process about returning data and statistical analysis to every school and to the Ministry of Education and Merit.