<![CDATA[This study aims to determine the effect of classical guidance on career decision making among grade XI students at SMA Negeri 18 Medan. The method used in this study is quantitative. This is a pre-experimental study using a one-group pretest-posttest design. The sampling technique used is random sampling, and the subjects of this study are 31 students in the 11th grade. The data collection technique is a career decision-making questionnaire consisting of 37 items with a reliability level of 0.894. Data analysis used the T-test (Paired Sample Test) and prerequisite tests, namely normality and homogeneity tests. The analysis results showed that the initial results (pretest) had an average of 93.96, while the final results (posttest) had an average of 126.64. The results of the T-test (Paired Sample Test) analysis showed that the t-value was -14.326 and the significance value was 0.000 with a significance level of 5%. In accordance with the criteria for accepting and rejecting hypotheses, Ho was rejected and Ha was accepted. This indicates that Classical Guidance has an effect on career decision-making among 11th grade students at SMA Negeri 18 Medan.]]>
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