APPLICATION OF ITEM OBJECTIVE CONGRUENCE INDEX (IOC-INDEX) FOR PROPER ALIGNMENT OF 2020 PHYSICS WASSCE ITEMS WITH OBJECTIVES AND CONTENT

Abstract

This study was on the application of item objective congruence index (IOC[1]Index) for proper alignment of 2020 Physics WASSCE items with objectives and content of Physics. A descriptive research design was adopted for the study. One research question was raised for the study. The study was carried out in Enugu State. The population of the study comprised all Physics Experts in the area. A sample of 7 experts drawn through convenience sampling technique was used for the study. Physics 2020 WASSCE question was used as the instrument for the study. No validity was conducted for the instrument because the purpose of the study was to establish the validity indices of the test items. Frequency count and percentage were used in the analysis. The results showed that out of the 50 items, majority, 44 (88%) of the 2020 Physics WASSCE items are congruent with the content of Physics as their IOC-indices were between 0.57-1.00 which is of acceptable range while 6 (12%) of the items were not properly aligned with the content of Physics because their IOC[1]indices were below 0.50 benchmark. Thus, it was concluded that majority of the items of 2020 WASSCE Physics question are properly aligned with content and objectives of Physics. The study recommended among others that examination bodies such as WAEC, NECO, JAMB, among others should ensure that alongside test blueprint, Item Objective Congruence (IOC) should be employed as part of content validity to ensure that the items of the test are valid and appropriately fit.