VALIDATION, INSTRUMENT, and PROFESSOR S. W. BASSEY. “TRANSFORMATION FROM CLASSICAL TEST THEORY (CTT) TO ITEM RESPONSE”. IJRDO -JOURNAL OF MATHEMATICS 2, no. 7 (July 31, 2016): 08-21. Accessed December 23, 2024. http://cpcontacts.ijrdo.org/index.php/m/article/view/1587.