دراسة مقارنة محكية المرجع لقياس معامل مؤشر حساسية المفردات بين طريقة (COX & VARGAS)‎ و بين طريقة (POPHAM)‎ لاختبار التحليل الناقد (critical dissection)‎

Abstract EN

The present study aims at comparaing between the coefficient index of Item Sensitivity as a criterion- reference study of COX & VARGAS method and that of POPHAms of the critical Dissecation Test which is one of the abilities tests constructed by JIM Barret (2009).

This test consists of 33 items of MCQ type with different number of options ranging between 3-6 depending on the origin of the item itself.

The test has been translate from English into Arabic then vice- versa in order to achieve its translation validity،then exposed on a group of experts in Educational and psychological Sciences to assure its items suilcability and about the change that took place in terms of the proper names included in the test.

Then 300 students have been selected to represent the stratified random sample from the colleges of the University of Baghdad during the academic year 2017-2018.Item difficulty coefficients, validity, and reliability coefficient have been computed for the test and which show their goodness.

The coefficient index of item sensitivity between the two afore mentioned methods has also been computed the cut score of ANGOF method has been computed which is 21 in order to decide the able and unable student.The study hypothesis has been verified which shows the accuracy of POPHAMS method in the estimation of the coefficient index of the items sensitivity than that of COX and VARGAS, which is related and depending on using the Chi- Square test to show the accuracy of estimating the difference and the discrimination coefficient of the items.

The test also has agood reliability coefficient by using KABA coefficient method which shows to be 0.61.