AL-OWAIDI*, Dalal Abdulrahman Mohammed; **AL-BURSAN, Prof. Dr. Ismail bin Salamah. Effect of Sample Size and Test Length on Item Parameter Estimation Accuracy according to Generalized Partial Credit Model and the Delta Scoring Model. Arts for Educational & Psychological Studies, [S. l.], v. 7, n. 2, p. 89–125, 2025. DOI: 10.53285/artsep.v7i2.2628. Disponível em: https://journal.tu.edu.ye/index.php/artsep/article/view/2628. Acesso em: 11 nov. 2026.