ASSESMENT OF VALIDITY AND RELIABILITY OF CRETIFICATE OF COMPETENCY TEST ITEMS: THE CASE OF WASHERA BROADVIEW COLLEGE IN DEBREMARKOS TOWN, AMHARA REGIONAL STATE

Abstract

This study was conducted to assess the validity and reliability of COC items in the case of Washera broad view college which is the center for COC examination at DebreMarkos town.The purpose of the study was to check the current situation or status of items which administered for certificate of competency candidates. The subjects of the study were 142 out of 150 certificate of competency candidates from different TVET colleges of Debre Markos Town in 2015/16 academic year in Washera Broadview college which is the center of the examination for all colleges in the town. stratified method sampling technique with lottery method were employed, because there two stratus which were department of cooperative accounting and computer networking. since the study focuses on item analysis, test papers were the main source of data. The statistical methods of data analysis were mainly used. As the study indicated some of COC items were not at appropriate level of difficulty as well as discrimination index, even there were items at good and very good quality. Interms of consistency also there were very strong correlations as well as low negative correlations were observed as calculated and analyzed by the formula of Pearson’s product moment correlation coefficient and Spearman Brown prophecy Rank-order correlation coefficient .therefore regarded bodies such as educational leaders, teachers, item experts and ministry of education should give much attention in order to have sound or qualified measurement and evaluation tools.