Albalawi, S.O.S. and Suleiman, S.K. 2022. Accuracy of Estimate of the items and the ability parameters according to the two parameters Logistic model for TIMSS 2019 Test for the science subject for the second intermediate class in Kingdom of Saudi Arabia. Journal of Educational and Psychological Sciences. 6, 3 (Jan. 2022), 57–81. DOI:https://doi.org/10.26389/AJSRP.B120721.