الخصائص السيكومترية لاختبار محكي المرجع في الكيمياء وفق النظرية الحديثة في القياس النفسي و التربوي

الملخص EN

This study aimed to estimate the psychometric characteristics of a criterion-referenced test in chemistry according to the modern theory of measurement.

to achieving this purpose an achievement test in chemistry was constructed, consisted of (57) multiple choice items of four alternatives.

the tes was administered on a sample of (390) male and female students of first secondary class of the scientific stream enrolled in the schools of Irbid educational directorate.

the results revealed that students responses for (47) item of the test fit rasch model assumptions, whereas (10) items didn't fit the model.

all items in the final form of the test were located in the range of infit/ outfit statistic.

the coefficients of reliability obtained for persons and items were (0.89) and (0.97) respectively.

the test content validity and concurrent validity were ensured.

the results also showed that the information function for the test was maximum at (b) which consistent with rasch model assumptions, also the test presents the greatest amount of information at medium ability level, and presents the least amount of information at both the highest and lowest ability levels.