KESTABILAN PENYETARAAN VERTIKAL DENGAN METODE EKUIPERSENTIL BERDASARKAN PROPORSI KELOMPOK GANDENG

Abstract

The purpose of this research is to know: Accuracy of vertical equating with equipercentil method for proportion of 10%, 20%, and 30% anchor group; The research method used is the experimental method with the independent variable is the proportion of the anchor group and the dependent variable is the accuracy of vertical equating by equipercentil method expressed by Root Mean Square Difference (RMSD) obtained from 40 replication. The research data obtained from the score of mathematics learning test for the topic of counting operations on integers and fractions in class VI and class VII 2nd semester academic year 2016/2017. The results showed that the accuracy of vertical equalization of the equipersentil method with the proportion of the anchor group 20% more accurate than the proportion of the anchor group 10% and 30%.