فهرس المقالات Cognitive diagnostic assessment حرية الوصول المقاله صفحة الملخص نص كامل 1 - Selecting the Best Fit Model in Cognitive Diagnostic Assessment: Differential Item Functioning Detection in the Reading Comprehension of the PhD Nationwide Admission Test Niloufar Shahmirzadi Masood Siyyari Hamid Marashi Masoud Geramipour 10.30495/ttlt.2020.678751