Exploring the Accuracy of Mathematics Students on the Final Semester Assessment Based on Racsh Model Analysis in Timor-Leste

Abstract

Mathematics is a difficult subject and often bored students with it always low student learning outcomes, in addition to student understanding is still low due to student accuracy is still low. The purpose of this study was to determine whether student accuracy can affect learning achievement. This research was conducted in the country of Timor Leste at Escola Secundaria Catolica St. Madalena de Canossa in 2021/2022 school year. The researcher used a saturated sampling method, so that the entire class XI students were taken as the main sample with a total of 72 students. The instrument used was a multiple-choice test instrument with a total of 25 questions and data analysis using Winstep Rasch model software. The results of the study can be summarized that, in the wright person item, we can see that there are 68% of the question positions in the understanding, applying and analyzing stages, while most students around 77% are in that position, so the actual 77% of the students get the correct results but the results of the students’ answers are mostly wrong. Thus, by using the Rasch model, we can see that most students do not have accuracy in solving problems.