Ajeng Wahyuni, Yunaita Rahmawati, Maulida Nurhidayati and Muhtadin Amri (2026) “Are We Measuring Ability or Guessing?: CTT and IRT Evidence from a Multiple-Choice Assessment in Econometric Test”, Hipotenusa: Journal of Mathematical Society, 8(1), pp. 104–116. doi: 10.18326/hipotenusa.v8i1.7088.