Badanie oceny trafności teoretycznej i zgodności wewnętrznej oraz normalizacji narzędzi diagnozujących kompetencje matematyczne i językowe

The Institute for Educational Research – National Research Institute awarded a contract to BR sp. z o.o. and PBS Sp. z o.o. for 996,666 PLN to conduct a study assessing the theoretical validity, internal consistency, and standardization of diagnostic tools for mathematical and linguistic competencies. The study will involve a minimum of 2,700 participants aged 6–16 years from approximately 100 public education institutions across Poland, administered using paper-based diagnostic batteries and supplementary assessment tools developed under the project 'Supporting Educational Accessibility for Children and Youth'.