Iwintolu, R. O. ., Opesemowo, O. A. G. and Adetutu, P. O. (2024) “Effect of 2-PL and 3-PL Models on the Ability Estimate in Mathematics Binary Items”, Journal on Efficiency and Responsibility in Education and Science, 17(3), pp. 257–272. doi: 10.7160/eriesj.2024.170308.