بناء اختبار محكي المرجع في الفيزياء العامة لطلبة الصف العاشر وفق المنهاج البريطاني باستخدام الأنموذج اللوجستي ثلاثي المعلمة
The study aimed to build a reference-based test in general physics for tenth grade (British Curriculum), based on IRT using the three-parameter logistic model. The sample consisted of (700) students, who were selected randomly by method. A test was constructed to achieve the objectives of the study. The number of items in the initial form reached (85) items, The characteristics of the test were verified through various methods of validity and reliability, in addition to the characteristics of the items considering CCT and the IRT. The results related to the characteristics of the test and the items showed that the test has good psychometric characteristics, which indicates its suitability for detecting students’ achievement in Physics, as the reliability value by the Carver method was (0.90) and by the Kappa method (0.74). The cut-off score for the test was (22.8), and when the test was matched according to the item response theory models, it was found that (40) items matched the model. The study ended with a set of recommendations. (Published abstract)