The characteristics of mathematical material deepening test for the national examination of junior high school

Abstract

The Material Deepening Test (MDT) is a test to prepare students to face the National Examination in Indonesia. The MDT test results are used as an evaluation and consideration of teachers towards students’ readiness to face the National Examination. The MDT test developed based on blue print of the National Examination. This study aims to describe the characteristics of the MDT for National Examination of junior high school in mathematics subject in Sleman Regency of Indonesia. This study is an explorative descriptive using a quantitative approach. Data collected by documentation technique. The characteristics of MDT analyzed using the classical test theory. The results show that the test is valid with Aiken’s index of 0.87 and included in the high category of content validity. Reliability index of test is 0.70 in good category. There are 19 items have discriminant index in good category, 8 items in quite good category, and 11 items in not good category. There are 3 items have difficulty index in easy category, 20 items in moderate category, and 15 items in difficult category. The most difficult material items for students are lines and angles, where the indicator is determining the angle formed from the real problem.