Development of A Two-Tier Multiple-Choice Instrument Based on Higher Order Thinking Skills (HOTS) on Acids, Bases, and Salts

Abstract

This study aims to measure higher order thinking skills on Acid, Base and Salt material. All students can think, but most of the students need encouragement and guidance for higher order thinking processes The test instrument needed in this research is to encourage students to think in higher order, namely the Two-tier Multiple-Choice test instrument that encourages students to think at higher levels. This research uses survey method. The sample in this study was 140 students from 3 junior high schools in Bima City, West Nusa Tenggara, Indonesia have high, medium, and low school averages. Based on the results of the research that has been carried out, the conclusions are for the reliability value of 0.725, the difficulty of the problem is 0.560, and the discriminating power of 0.229. In the measurement of students' higher order thinking skills, it was found in the Low category of 8.8%, moderate 29.9%, good 42.7% very good 17.6%. This research is expected to provide an alternative to measure students' higher order thinking skills by using the TTMC instrument based on Higher Order Thinking Skills