The certainty of Response Index (CRI) and scale of honesty to identify student misconceptions

Abstract

Research related to the identification of misconceptions has been carried out by some researchers, notably using the CRI scale (Certainty of Response Index). But there were no results that underline misconceptions by using a scale of honesty. This study aimed to identify misconceptions on relations and functions at Basic Math Capita Selecta subject using CRI and Honesty Scale. The study used survey methods, the instrument used was a questionnaire scale CRI, honesty scale questionnaire and interview guidelines. The results showed that: 51,32% student understand the concept; 12,63% high guess element of the correct answer; 16,32% are misconceptions; and 19,47% did not know the concept. Based on the results of the honesty scale which was strengthened by interviews, it is shown that students were wrong in understanding the concept of the relation of functions for a one-to-one correspondence between two sets, and wrong in determining the function of the graph. With the results of this identification, enables teachers to provide reinforcement for students who were still weak at a concept to provide a review of the material.