مقارنة بين النظرية الكلاسيكية للقياس و نظرية الاستجابة للمفردة في تقدير الخصائص السيكومترية لاختبار القدرات العامة

الملخص EN

The purpose of this Study was to compare the item difficulty and Student ability QatiQics eQimated from classical test theory with those from item response theory" which is rep- resented in Rasch model.

This Study also assessed the invariance of item difficulty and Student ability Statistics estimated of the two theories across participant samples and item groups.

Fur- thermores this Study aimed to identify poor items from the two theories.

The data used in this Study drawn from a population of 36,916 Students who took the General Aptitude Test in 2016.

Five sam- ples (random sample' males female' high ability' low ability) were selected' each with a sample size of 1000.

The finding indicated that the item difficulty and person ability Qatisctics estimated from the two theories were highly compara- ble.

In addition' item difficulty and person ability Qatiélics esti- mated from item response theory were more invariant than those eStimated from classical test theory.

Furthermore' more items were found unfit by the classical test theory than item response theory.