EKPO, EFFIONG OJI, and PROFESSOR S. W. BASSEY. “TRANSFORMATION FROM CLASSICAL TEST THEORY (CTT) TO ITEM RESPONSE”. IJRDO- Journal of Educational Research 1, no. 4 (July 31, 2016): 104-117. Accessed August 27, 2026. https://www.ijrdojer.com/index.php/er/article/view/527.