Pengembangan Instrumen Evaluasi Berbasis Literasi Sains untuk Siswa SMK
The purpose of this study is to develop scientific literacy evaluation instrument that tested its validity, reliability, and characteristics to measure the skill of student’s scientific literacy used four scientific literacy, categories as follow:science as a body of knowledge, science as a way of thinking, science as a way of investigating, and the interaction between science, technology, and society.The subjects of this developing study were 12th grade student of vocational school in Kudus on 2018/2019 period who had been received physics material.Validity test is done by the content, construct, concurrent validation, and alignment validation toward PISA’s instrument. Reliability testing and items characteristic instrument is done by using QUEST program in classical test theory (CTT) and items respons theory (IRT) approach. Profile of scientific literacy ability is determined by measuring students' mastery of scientific literacy. The result of reliability test defined that the instrument is very valid. The coefficient of reliability at CTT approach is 0,94 and IRT approach is 0,91. Items characteristics of evaluation instruments developed shows that the instrument has proportional level of difficulty, good discrimination power, good distractor quality, and comparison of scientific literacy category is 2: 1: 1: 1. Profile of literacy skills mastery of science good enough with the lowest percentage is interaction of science, technology, and society categories.