Mikhailova Aleksandra M., AvdeenkoNadezhda A., ChentsovaAleksandra A., and PashchenkoTaras V. 2025. “What Effect Size Doesn’t Tell: A Methodology for Research on the Development of Key Competencies”. Voprosy Obrazovaniya / Educational Studies Moscow, no. 1 (January). https://doi.org/10.17323/vo-2025-17337.