PENGEMBANGAN MEDIA LECTURE MAKER UNTUK MENINGKATKAN KEMAMPUAN MENULIS TEKS NEGOSIASI DALAM PEMBELAJARAN BAHASA INDONESIA DI JENJANG SMA

This development research aims to determine the effectiveness of interactive learning media based on Lecture Maker. The method used is Research and Development (R&D) with the ADDIE approach, resulting in a product in the form of learning media designed to improve students' learning outcomes. Theresearch subjects are10th-gradestudents at MA Muhammadiyah 4 Balen Bojonegoro. Quantitative data were obtained from the control and experimental classes and analyzed using SPSS software. Meanwhile, qualitative data were gathered through interviews, observations, documentation, and field studies. The data analysis results show that the average differencebetweenpre-testandpost-testscoresis-0.633,indicatingaslightdecrease.Effectiveness is further analyzed through a standard deviation of 19.718, reflecting significant variation in participants' scores, and a Standard Error Mean of 3.600, indicating the precision of the mean estimation.The95%confidenceintervalrangesfrom-7.996to6.729,whichincludeszero,meaning theresults arenotstatistically significantatthislevel.However,thet-value(0.176)is greaterthan the critical t-value at a 0.05 significance level, suggesting that the Lecture Maker media has a significantimpactonimprovingnegotiationtextwritingskills. Thus,theuseofLectureMakermedia is considered effective and suitable for use in 10th-grade classes at MAMuhammadiyah 4 Balen Bojonegoro.