AISYAH AZMI SYAHIDAH, . (2026) PENGARUH MODEL DIRECT INSTRUCTION MENGGUNAKAN STRATEGI PREDICT OBSERVE EXPLAIN TERHADAP HASIL BELAJAR SISWA PADA MATERI LARUTAN PENYANGGA. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.
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Abstract
Penelitian ini bertujuan untuk mengetahui pengaruh hasil belajar siswa di kelompok eksperimen yang menggunakan model Direct Instruction terintegrasi strategi Predict Observe Explain (POE) dibandingkan dengan siswa di kelompok kontrol yang menggunakan model pembelajaran Problem Based Learning (PBL) pada materi larutan penyangga. Penelitian ini menggunakan pendekatan kuantitatif dengan desain pretest posttest non-equivalent control group yang dilaksanakan pada semester genap tahun ajaran 2025/2026 di SMA Negeri 10 Bekasi. Sampel penelitian terdiri dari dua kelas yang dipilih melalui teknik purposive sampling, yaitu kelas eksperimen dan kelas kontrol dengan masing-masing 36 siswa. Data hasil belajar dikumpulkan menggunakan instrumen tes pilihan ganda sebanyak 20 soal yang telah divalidasi, diberikan sebelum (pretest) dan sesudah (posttest) perlakuan selama empat kali pertemuan. Hasil uji independent t test pada data pretest menunjukkan tidak terdapat perbedaan kemampuan awal yang signifikan antara kedua kelompok (p = 0,348 > 0,05), yang membuktikan kedua kelompok berangkat dari kondisi awal yang setara. Setelah diberikan perlakuan, rata-rata posttest kelas eksperimen (63,61) lebih tinggi dibandingkan kelas kontrol (58,75), dengan hasil uji independent t test menunjukkan perbedaan yang signifikan (t = 2,020; p = 0,024 < 0,05), sehingga H0 ditolak dan Ha diterima. Nilai effect size (Cohen's d) sebesar 0,476 tergolong kategori sedang, yang menunjukkan bahwa pengaruh tersebut juga memiliki makna praktis yang berarti. Dengan demikian, dapat disimpulkan bahwa model pembelajaran Direct Instruction yang diintegrasikan dengan strategi Predict Observe Explain berpengaruh positif dan lebih efektif meningkatkan hasil belajar siswa pada materi larutan penyangga dibandingkan model pembelajaran Problem Based Learning. ***** This study aims to determine the effect on student learning outcomes in the experimental group taught using the Direct Instruction model integrated with the Predict Observe Explain (POE) strategy, compared with the control group taught using the Problem Based Learning (PBL) model, on the topic of buffer solutions. This study employed a quantitative approach with a pretest posttest non-equivalent control group design, conducted in the even semester of the 2025/2026 academic year at SMA Negeri 10 Bekasi. The research sample consisted of two classes selected through purposive sampling technique, namely an experimental class and a control class, each comprising 36 students. Learning outcome data were collected using a validated 20-item multiple-choice test instrument, administered before (pretest) and after (posttest) the treatment across four meetings. The independent t-test results on the pretest data showed no significant difference in initial ability between the two groups (p = 0.348 > 0.05), confirming that both groups started from an equivalent baseline condition. After the treatment was given, the posttest mean of the experimental class (63.61) was higher than that of the control class (58.75), with the independent t-test results showing a significant difference (t = 2.020; p = 0.024 < 0.05), leading to the rejection of H0 and the acceptance of Ha. The effect size value (Cohen's d) of 0.476 fell into the medium category, indicating that the effect also carried meaningful practical significance. Thus, it can be concluded that the Direct Instruction learning model integrated with the Predict Observe Explain strategy had a positive effect and was more effective in improving student learning outcomes on the topic of buffer solutions compared to the Problem Based Learning model.
| Item Type: | Thesis (Sarjana) |
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| Additional Information: | 1). Dr. Darsef Darwis, M. Si.; 2). Rika Siti Syaadah, M. Pd. |
| Subjects: | Sains > Kimia |
| Divisions: | FMIPA > S1 Pendidikan Kimia |
| Depositing User: | Aisyah Azmi Syahidah . |
| Date Deposited: | 26 Aug 2026 08:21 |
| Last Modified: | 26 Aug 2026 08:21 |
| URI: | http://repository.unj.ac.id/id/eprint/72013 |
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