The Deputy is referring to the comprehensive survey of all primary schools, which was carried out by the Educational Research Centre in 2000 at the request of my Department. The purpose of the survey was to identify the level of concentration in each primary school of pupils with characteristics that are associated with educational disadvantage and early school leaving. All primary schools were issued with a circular in April 2000, followed by a letter of invitation, a questionnaire and a further reminder to apply for inclusion in a package of supports aimed at tackling educational disadvantage. Almost 75% of primary schools responded to the survey with completed survey questionnaires.