taken WORK classe normality shown system average iii experiment model variant sample SMAN different problem there prerequisite classroom GRADE OF 683 ACTIVITIES consisted then population test lecturer rejected investigate question normal ACHIEVEMENT carried also 2012 GROUP taught percentage distribution sampling TAUGHT clas value ACADEMIC YEAR ha same matauli random free nearly 2013 based result keyword 409342033 group student wa cognitive accepted triana analysi choise validated learning degree research INDIVIDUAL IA between than both quasy expert comparison all tcount MATAULI human gultom data 202 LEARNING after showed out difference ttable academic instrument work using multiple grade significance activitie higher conclusion homogeneity achievement puspasari COMPARISON XI PBL ABSTRACT significant aim obtained totaling post BETWEEN criteria individual topic homogeneou STUDENTS year pretest excretory statistically had cluster