AKURASI METODE CONCORDANCE BERDASARKAN PANJANG TES DAN UKURAN SAMPEL

Abstract

This research used two sets of test instruments, namely the Final Examinations of Mathematics of seventh grade, which were respectively developed by SMPN 223 Pasar Rebo East Jakarta and SMPN 196 Cipayung East Jakarta. These two sets of test instruments were developed based on different construct on its indicator. The method used was an experimental method that was aimed to examine the accuracy of concordance method between linear and equipercentile methods based on test length of 20 and 30 items with sample size of 100 and 150. Samples are taken by using multiple random sampling with as many as 20 replications. Research hypotheses were tested by using t-test analysis. The study concluded that the RMSD score of the equipercentile method was greater than the same score of the linear method. This indicated that linear method was more accurate compared to equipercentile method.