Development and validation of student's responsibility scale on mathematics learning using subject scaling model

Abstract

The character of responsibility is an important character that Indonesian students must possess. The attempts to strengthen the character of student responsibilities require in-depth information about the actual state of student's responsibility. The use of relevant, valid, and reliable instruments is necessary to obtain accurate and accountable information about the conditions of student's responsibility. A scale for measuring student's responsibility in mathematics learning was developed through this study. The scale was developed by using subject scaling models and tested on junior high school students in Yogyakarta, Indonesia. The first trial involved 688 students and a second trial involved 696 students. Based on this study, the result of Student's Responsibility Scale on Mathematics Learning (SRSML) consisted of 14 items in the form of subject scaling which theoretically and empirically proved to be of good quality. The scale has good content validity supported by V Aiken index of 0.88-0.92. The scale has good construct validity. Scale reliability is also categorized as good with Omega coefficient of 0.89. SRSML has a lot of potential to be used both in the character assessment activities of students in learning mathematics to strengthen character education and educational research, especially related to the student's responsibility character.