<![CDATA[This study aims to determine the effect of the group discussion method on the speaking skills of tenth-grade students at SMK Putra Jaya Stabat. This research employed an experimental method using a One-Group Pretest-Posttest Design. The population consisted of all tenth-grade students at SMK Putra Jaya Stabat, totaling 201 students, while the research sample consisted of 40 students from class X TKR 2, selected using a purposive sampling technique. The research instruments included speaking skill tests in the form of pretests and posttests, as well as student activity observation sheets. The aspects assessed in speaking skills included voice volume, fluency, intonation, pronunciation, and confidence. The data were analyzed using descriptive and inferential statistical analyses with a t-test. The results showed that the students' average pretest score was 62.88, which was categorized as poor. After the implementation of the group discussion method, the average posttest score increased to 84.38, which was categorized as good. The hypothesis testing results using the t-test showed that the calculated t-value was 37.60, while the t-table value was 2.02. This indicates that the calculated t-value was greater than the t-table value; therefore, H₀ was rejected and Hₐ was accepted. Thus, it can be concluded that the group discussion method has a significant effect on the speaking skills of tenth-grade students at SMK Putra Jaya Stabat]]>
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