Career understanding is essential for vocational high school students to recognize their potential, understand the world of work, and make realistic career choices. Preliminary identification at SMK Labschool Unesa 1 Surabaya indicated that some tenth-grade beauty program students were still uncertain about their career choices. This study aimed to examine changes in students’ career understanding scores following group guidance services using the sociodrama technique. A quantitative approach with a pre-experimental one-group pretest–posttest design was employed. Eight students with low career understanding scores were selected through purposive sampling from an accessible population of 24 students. Data were collected using a career understanding questionnaire with a Cronbach’s alpha reliability coefficient of 0.943 and analyzed descriptively and using the Wilcoxon Signed-Rank Test. According to the draft results, there were five positive ranks, two negative ranks, and one tie, with an Asymp. Sig. (2-tailed) value of 0.237 (p > 0.05). These findings indicate that no statistically significant difference was found between pretest and posttest scores; therefore, the evidence supporting the intervention’s effectiveness remains insufficient. The findings should be interpreted cautiously due to the small sample size and the absence of a control group. To improve research reproducibility, the instrument’s source and validity, score range, category thresholds, number and duration of sessions, activity stages, and sociodrama scenarios should be described based on the actual implementation.
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