THE EFFECT OF DIGITAL BLOOKET-BASED LEARNING ON ENGLISH VOCABULARY DEVELOPMENT OF EIGHTH GRADE STUDENTS AT SMP NEGERI 9 TEGAL

Mastering vocabulary is foundational for EFL learners, yet junior high school students frequently encounter retention and engagement barriers under traditional teacher-centered instruction. This study investigated the effect of Digital Blooket-Based Learning on the English vocabulary development of eighth-grade students at SMP Negeri 9 Tegal during the 2025/2026 academic year. Employing a quantitative pre-experimental one-group pre-test and post-test design, 32 students from Class VIII-F were selected through purposive sampling. Data were collected using a validated 37-item multiple-choice test evaluating word meaning, spelling, pronunciation recognition, and contextual usage. Descriptive and inferential analyses were performed via IBM SPSS. Results indicated a marked increase in student achievement, with mean scores rising from 56.86 (SD = 10.950) on the pre-test to 84.28 (SD = 4.074) on the post-test, reflecting a 27.42-point gain. The Shapiro-Wilk test confirmed normal distribution (p > .05). A paired-sample t-test yielded t(31) = -12.584, p < 0.001, rejecting the null hypothesis. The findings demonstrate that Blooket’s dynamic gamified mechanics, instant feedback, and structured repetition significantly enhance vocabulary acquisition. Consequently, Blooket is strongly recommended as an effective instructional tool for EFL educators.