The Content Validity: Two-Tier Multiple Choices Instrument to Measure Higher-Order Thinking Skills

Abstract

Two-tier multiple choices instrument is an instrument consisting of two tiers, the first tier is choices of the answer from a question and second tier is choices of the reason for an answer in the first tier. The two-tier instrument can be used to measure students' higher-order thinking skills. This research aims to analyze content validity two-tier instrument multiple choice to measure students' higher-order thinking skills in a static fluid. The method used in this research is descriptive analyze a method for content validation based on Aikens' Formula. Data of content validation was obtained from 9 experts, consisting of 6 lecturers who had doctorates and 3 physics teachers of the senior high school in Surakarta. Based on the results and discussion, can be concluded that 20 item questions of two-tier multiple choices instrument to measure students' higher-order thinking skills in the static fluid are declared valid based on Aiken Validity.