ILIYA, A. ITEM PARAMETERS, SCORING MODELS AND ABILITY ESTIMATES OF DISTANCE EDUCATION STUDENTS: IMPLICATIONS FOR THE NATIONAL OPEN UNIVERSITY OF NIGERIA. Sokoto Educational Review, [S. l.], v. 23, n. 1, p. 162–172, 2025. Disponível em: http://www.sokedureview.org/index.php/SER/article/view/521. Acesso em: 26 sep. 2025.