Effects of Instructional Materials Conflict Management on Student Achievement
This study was carried out to ascertain the Effects of Instructional Materials on Students’ Achievement in Conflict Management in FKIP Universitas Jambi as the case study. The design of the study was quasi experimental. Due to the smallness of the number, no sampling was carried out on the population. However, simple random sampling technique was applied to choose the experimental and control groups. The instrument for data collection was Conflict Management Achievement Test (CMAT) questionnaire. It contained a twenty (20) item multiple choice questions based on the topics selected for the study. The face and content validity of the instrument was ascertained by two experts,  from Administrasi Pendidikan Department Faculty of Education, and one from Pusat Penjaminan Mutu Universitas Jambi.  Kuder Richardson-20 statistic was used to test the reliability of the instrument and it yielded 0.80 which was deemed high enough for the study. The research questions were analyzed using adjusted mean and standard deviation. Test of Mann Whitney (data is not normally distributed) was used to test the null hypotheses. The result revealed that those taught with instructional materials performed significantly better than those taught without instructional materials. Significant cases were assessed using multiple classification analysis to determine contribution of each treatment to the level of significance. Based on this finding, it was recommended that instructional materials should be used in the teaching of Conflict Management since it enhances students’ performance. Keywords : Effects, Instructional Materials, Achievement, Conflict Management.