E.Z. Surni, H. Retnawati
Try out is an assessment form organized by the school and related parties before the implementation of national examination (UN) in Indonesia. By trying out, schools can conduct evaluations regarding the ability and readiness of students to face the UN. This research aims to determine the quality of the test instrument for UN mathematics try out of one of Junior High Schools at Makassar City, South Sulawesi. It can later be used as a revision basis. This is a descriptive-explorative type of quantitative research. The data is the test instrument and participant's answers, collected by documentation. The instrument is validated by the experts, and its quality is analyzed using the classical test theory approach. The results of the research indicate that the test instrument has Aiken index value of 0.854 which means that the test instrument has high validity for all items. The reliability coefficient of 0.82 means that the instrument has very good reliability. There are 11 difficult items, 14 items having a weak discrimination category and 4 items having ineffective distractor. The Items must be followed up by revising. © Published under licence by IOP Publishing Ltd.
Graduate Program of Mathematics Education, Yogyakarta State University, Depok, Sleman, Yogyakarta, Indonesia; Department of Mathematics Education, Faculty of Mathematics and Natural Science, Yogyakarta State University, Depok, Sleman, Yogyakarta, Indonesia
