ANALISIS BUTIR SOAL MATA PELAJARAN EKONOMI MATERI PERTUMBUHAN DAN PEMBANGUNAN EKONOMI: VALIDITAS, RELIABILITAS, TINGKAT KESUKARAN DAN DAYA PEMBEDA

Abstract

This research aims to analyze the items of Economics subject questions on the material of
economic growth and development used in Class XI of SMA Negeri 1 Kepanjen. The analysis
was conducted to determine the quality of the questions from the aspects of validity, reliability,
difficulty level, and discriminating power. The research method uses a descriptive quantitative
approach with the instrument being the daily exam questions along with students' answers. Data
were analyzed using the assistance of SPSS software. The results of the study show that out of
the 25 items analyzed, only 15 questions were declared valid, while 10 questions were not valid.
The reliability test yielded a Cronbach's Alpha value of 0.706, which falls into the high
reliability category, thus indicating that the valid questions can be used consistently. The
difficulty level analysis showed that 5 questions were in the easy category and 10 others were in
the moderate category, with no questions classified as difficult. Meanwhile, the discriminating
power test showed that 7 questions were well-received, 4 questions were accepted but needed
improvement, 2 questions needed improvement, and 2 questions should be rejected. Thus, even
though the test is quite reliable, some of the items need to be revised to be more effective in
measuring student competency

Keywords: Item analysis, validity, reliability, difficulty level, discriminating power