Development of non-test instruments for learning independence and learning anxiety in junior high school mathematics

The purpose of developing this research instrument is to obtain a valid, valid and reliable instrument of learning independence and mathematical anxiety before being used in research. Proving the validity and reliability of the research instrument was carried out through content validity, construct validity and reliability tests. The content validity test was carried out by 2 research experts and construct validation based on instrument testing. The research method uses research and development by using the steps of preparing the questionnaire instrument developed by Purwanto. The trial was conducted at SMP Negeri 13 Satarmese involving 42 research samples from a total of 86 research populations. Determination of the trial sample is done by random sampling technique. This study uses a non-test instrument in the form of a questionnaire. Data collection techniques used non-test techniques and were analysed using analytical techniques developed by Aiken, namely the ratio of content validity of Aiken's V items in content validity testing. While the analysis technique in testing the validity of the construct using Bivariate Pearson correlation and reliability testing were performed using the Cronbach Alpha formula. The results showed that 1) the results of developing the instrument obtained 40 statements of learning independence and 40 statements of mathematical anxiety, 2) the results of content validity testing of the 40 items of statements of learning independence instruments and the 40 items of statements of mathematical anxiety instruments showed that all of them were valid, 2) the results of the construct validity test, there are 30 valid learning independence instrument statements and 10 invalid statements, and 3) there are 30 valid mathematical anxiety instrument statements and 10 invalid statements. In addition, the results of the instrument reliability test showed that the reliability level of the student learning independence questionnaire was in the high category, namely 0, 829 and the level of reliability of the students' mathematical anxiety questionnaire was in the high category, namely 0.887. Thus, the instrument items are valid and reliable, suitable for use in research.