Osoba, Adunola, OLUWATOMI ALADE, and ’SOLA ALETAN. “Construction and Standardization of Economics Achievement Test Using Classical Testing and Item Response Methods”. The African Journal of Behavioural and Scale Development Research 5, no. 1 (January 17, 2024). Accessed October 8, 2024. https://ojs.abreap.org/index.php/journal/article/view/151.