We compose and pilot the computer-based battery of tests for school psychologists for assessing students’ psychological processes and personality. This widens the possibilities to support the development of students with special educational needs. We proceed from the research carried out in earlier projects in Tallinn University. As a result of these studies, we have developed cognitive and personality tests and examined their psychometric properties. In this project, we additionally develop tests to cover all age ranges and psychological variables. As a result, psychologists will have tests, their manuals and grade-based norms. We educate other personnel in Rajaleidja regional youth guidance centres in the areas of child development, assessment, and support, and psychologists in skills of using tests and interpreting the results.