INVALSI Statistical Department 
Updated
27 February 2025
Micro-data Sample 2020-21 School-Principal Questionnaire
In this section, researchers affiliated with recognised institutions may request data relating to teachers and headteachers of the sample classes in the INVALSI national assessments, subject to the submission of the required forms. The Headteacher Questionnaire is aimed at headteachers whose school has been included in the INVALSI national sample, with the main aim of understanding how the school is managed.