Testing the influence of SDES instructional media on the results of cryptography learning
This study aims to examine the influence of Simplified Data Encryption System (SDES) Simulation to student learning outcome in Cryptography Lessons. The research employed quasy experiment. Data analisys to test SDES Simulation model was performed using ANAVA 2x2. The U-Mann Whitney Test chosen to examine differences in student learning outcome of treatment groups and control groups. While the effectiveness of the media is determined by differences in student learning outcomes between the Pre Test and Post Test results in the two groups.Test results show that: (1) There is a difference between the treatment group and the control group this is indicated from U-Mann Whitney Testresult (Ucount = 15< Utable = 23; α = 0.05, it means there is difference of student student learning outcome given by DES simulation media with students who are given learning with Power Points Media. (2) There is a difference of the kiptography student learning outcome for the students with the high initial ability between the treatment group and the control group. The test result is Ucount=0,5<Utable= 2; at α = 0.05). (3) There is no difference in student learning outcome for low initial ability student groups using of Simulation Media the DES, with high ability students group using Power Points Media, statistical test results show (U count =11 > U table =2); at α = 0.05). This study concludes that using U-Mann Whitney can be proven that SDES that have been developed are effective for improving student learning outcomes in Kiptography lessons.