Development of Science Process Skills Test on Salt Hydrolysis for Eleventh Grade Students
Eka Puspita Kartika Sari, Fauziatul Fajaroh, Yahmin Yahmin, Yudhi Utomo, Muntholib Muntholib

UM

Abstract

This study aims to develop a multiple-choice science process skill test on salt hydrolysis for eleventh graders that is valid and reliable. The development was carried out in five stages: literature review, items development, expert judgment, pilot study, and finalization of the instrument. The expert judgment involved four experts who had more than 10 years of chemistry teaching experience. While the pilot study involved 150 students of eleventh grade. The initial product of the science process skill test consists of 28 items. The analysis shows that the content validity index (CVI) of the test is 0.9 with the criteria of almost perfect. The pilot study shows that all items are valid with the difficulty level of low 2 items, moderate 25 items, and high 1 item. The final form of the multiple-choice science process skills test on salt hydrolysis for students of eleventh grade consists of 28 valid items with the Cronbach^s Alpha reliability of 0.891. These results indicate that the developed multiple-choice science process skills test is eligible to be used in the assessment of students^ science process skills.

Keywords: Sains Process Skill- Test Instrument- Salt Hydrolysis

Topic: Chemistry Education