Micro-data Sample G10 2018-19 Mathematics
In the section it is possible, after logging in to the site, to download the micro-data (in SPSS format) related to the sample surveys. In each national survey, INVALSI selects a two-stage probability sample, stratified at the first stage, in which the units in the first stage are the school sites (the institutes) and those in the second stage are the sections. in the Control Sample Survey, the tests are carried out under the supervision of observers outside the classroom and school faculty.