Characteristics of Math national-standardized school exam test items in junior high school: What must be considered?

Abstract

National Standardized School Exam (USBN) is used to determine Student’s graduation. This research aims to determine the characteristics of items for Math USBN in SMP on grade 9. This kind of research is a descriptive-explorative quantitative research. The data collected is a USBN test instrument at SMP Negeri 3 Pati and participants' answers, which are collected by documentation. The USBN instrument was validated by experts and the characteristic items of USBN instrument were analyzed using the classical test theory approach. The question items of math USBN test at SMP Negeri 3 Pati is generally moderately good. Based on the classical theory approach, the result of the validity is 0.924. 56.7% of items are very valid. The reliability is 0.78 categorized as high reliability. Generally, Math USBN items are in the easy category with a percentage of 83.3%. The results of discrimination index indicate that in general, USBN items are in a moderate category with a percentage of 60%. The distraction effectiveness shows that USBN items are in the functional category with a percentage of 50%.