Razeghpour, F. and Rolka, K. 2026. Effects of guiding feedback on students’ performance, calibration, and self-efficacy: Insights from a field study with engineering students. LUMAT: International Journal on Math, Science and Technology Education. 14, 4 (Jun. 2026), 3. DOI:https://doi.org/10.31129/LUMAT.14.4.2692.