The Impact of Using Mystery Box on Student Achievement and Motivation in Learning English

This research aims to determine the impact of using Mystery Box media on students’ learning achievement and motivation in learning English. This research is motivated by the low learning outcomes of eleventh-grade students at MAN 2 Aceh Barat. One of the contributing factors is low student participation, lack of learning motivation, and unsatisfactory English learning outcomes caused by monotonous teaching methods and the limited use of innovative learning media. This research employed a quantitative approach using a pre-experimental one-group pretest–posttest design. The sample consisted of 19 students selected through total sampling. The instruments were a written test to measure students’ learning achievement and a questionnaire to measure learning motivation. The data were analyzed using descriptive and inferential statistics through a paired sample t-test using SPSS. The results showed a significance value (2-tailed) of 0.053 with t = −2.074 and df = 18. Since the significance value was greater than 0.05, there was no statistically significant difference between pretest and posttest scores. Therefore, the null hypothesis (H₀) was accepted and the alternative hypothesis (H₁) was rejected. However, students’ mean scores and learning enthusiasm improved after the implementation of Mystery Box media. In conclusion, Mystery Box media created a more interactive and enjoyable learning atmosphere and increased students’ motivation, although it did not significantly affect students’ English learning achievement statistically.