The effect of the online learning model of Rumah Belajar Muhammadiyah (Rubelmu) on students’ vocabulary achievement at second grade of SMP Muhammadiyah 3 Bandarlampung

The research objectives were to find out (i) whether online learning using Rubelmu has a significant difference on students’ vocabulary mastery at SMP Muhammadiyah 3 Bandarlampung and (ii) the students’ perceptions of online learning using Rubelmu. This was quantitative research with one pretest-posttest design. The subjects use 30 samples taken from the second grade of SMP Muhammadiyah 3 Bandarlampung. The one group gathered from the result of pretest-posttest to measure the significance difference were collected through the pretest and the post test. Questionnaires were used to find the students’ perceptions. The data collected were compared by using SPSS. The outcome showed that online learning using Rubelmu had a significant difference on students’ vocabulary mastery. There was an improvement of students’ vocabulary mastery based on the gain of mean score score that was indicatively increased from 59.5 to 80.5. Questionnaire was distributed to measure the students’ perception about Rubelmu. As expected, the finding shows the students had a positive perception of online learning using Rubelmu.