Vevina Dyahsasi Nugraha, Muntholib Muntholib, Ridwan Joharmawan, Parlan Parlan, Yahmin Yahmin, Muhammad Su'Aidy
The implementation of the scientific inquiry approach in the 2013 curriculum in Indonesia needs appropriate assessments, one of them is a higher-order thinking skills (HOTS) test. Acid-base chemistry, one of the chemistry topics in the senior high school curriculum, has concepts that are interrelated with each other that suitable to improve students' higher-order thinking skills. The purpose of this study was to develop a valid and reliable higher-order thinking skills-oriented test on acid-base chemistry. The study applied research and development design which was carried out in five stages, namely (1) literature review, (2) development of items, (3) expert judgment, (4) pilot study, and (5) finalization of the instrument. The pilot study involved 205 students of public and private senior high school in Malang Raya. The final product of instrument consisted of 32 valid items of HOTS test on Acid-Base Chemistry with Cronbach's Alpha reliability coefficient of 0.787. This indicates that the instrument produced by this research and development can be used to assess student's higher-order thinking skills on Acid-Base Chemistry. © 2020 Author(s).
Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia
