The article presents, present , practical requirements towards educationistsas diagnosticians. It is an attempt to answer constantly changing provisions in thematter of organizing and providing psychological and pedagogical help in publicschools. The work includes description of specified test exercises, from IntegratedMeasurement of Psychological Variables System (SDP-System), which based onvalidation analysis so far were acclaimed as accurate and reliable. In System, testexercises are built inter alia based on test modules using graphic marks, presentingpictures and psychomotor exercises. These exercises may be successfully usedby educationists and technical or vocational education teachers in order to determinepredispositions, potential and students aptitudes.