ENGARUH MODEL GUIDED DISCOVERY LEARNING TERHADAP HASIL BELAJAR SISWA PADA MATERI TERMODINAMIKA KELAS XI SMA NEGERI 1 ONOHAZUMBA
Abstract
This study aims to determine the significant effect of the Guided Discovery Learning model on students’ physics learning outcomes in the thermodynamics topic for grade XI students in the second semester at SMA Negeri 1 Onohazumba in the academic year 2024/2025.
This research is a quasi-experimental study. The population consisted of all grade XI students in the second semester at SMA Negeri 1 Onohazumba, academic year 2024/2025, totaling 72 students divided into two classes. The research sample consisted of two classes obtained through cluster random sampling, with class XI 1 as the experimental class taught using the Guided Discovery Learning model totaling 36 students, and class XI-2 as the control class taught using direct learning model totaling 36 students. The instrument used to measure students’ learning outcomes was a multiple-choice test consisting of 20 questions with 5 options (a, b, c, d, and e), which had been trial-tested on students outside the sample to determine validity, reliability, discriminatory power, and difficulty level.
The results of the study showed that the average pretest score of the experimental class was 52.64 with a standard deviation of 9.60, while the average pretest score of the control class was 57.08 with a standard deviation of 9.44. Based on the t-test, the value obtained was t_count = 1.40 and t_table = 2.00 at a significance level of α = 0.05 with df = 70. Since t_count < t_table, this indicates that the initial ability of the two classes was the same. The posttest results showed that the experimental class had an average score of 76.11 with a standard deviation of 12.60, while the control class had an average score of 65.83 with a standard deviation of 11.35. Based on the t-test, the value obtained was t_count = 3.70 and t_table = 2.00 at a significance level of α = 0.05 with df = 70. Since t_count > t_table, this indicates that there is a significant effect of the Guided Discovery Learning model on students’ physics learning outcomes in the thermodynamics topic for grade XI students in the second semester at SMA Negeri 1 Onohazumba in the academic year 2024/2025.
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