posttest normality moment validity chi 153 101 139 teacher 135 correlation bakti sunggal OF III documentation observation test tuan 100 120 177 161 distribution 109 151 lecture index clas difficulty 191 swasta science APPENDIX reliability table 108 142 student syllabu analysi 192 learning 150 155 102 163 standarized trial salt data XII 140 104 131 control product hydrolysi instrument using grade character sei N1 appendix homogeneity plan 190 normalized PBL LIST 148 106 sheet quadrate dharma SMA chemistry validation topic module 149 interactive gain pretest questionnaire calculation lesson hypothesi experimental distinguish 146 percut II