Anggit Prabowo, - and Tatang Herman, - and Siti Fatimah, - and Jarnawi Dahlan, - (2025) PENGEMBANGAN FOUR-TIER ONLINE DIAGNOSTIC TEST BERBASIS WEB UNTUK MATERI GEOMETRI SMP. S3 thesis, Universitas Pendidikan Indonesia.
Abstract
Penelitian ini bertujuan untuk mengembangkan Four-Tier Online Diagnostic Test (FODi-Test), sebuah sistem tes diagnostik berbasis web untuk mendiagnosis kemampuan siswa SMP pada materi geometri dengan format butir soal four-tier. Secara khusus, penelitian ini menjelaskan prosedur pengembangan FODi-Test, menganalisis validitas dan reliabilitasnya, mengkaji karakteristik butir soal, mendeskripsikan respons pengguna, menguraikan informasi diagnosis yang dihasilkan, serta menguji korelasi antara hasil diagnosis dan capaian belajar geometri siswa. Penelitian pengembangan ini menggunakan model ADDIE (Analyze, Design, Develop, Implement, Evaluate) dengan subjek uji coba 131 siswa SMP di Daerah Istimewa Yogyakarta. Instrumen penelitian meliputi lembar validasi, kuesioner respons pengguna, dan dokumentasi. Analisis data dilakukan secara deskriptif kuantitatif untuk menilai validitas, reliabilitas, indeks kesukaran, daya beda, keberfungsian pengecoh, respons pengguna, serta korelasi dengan hasil belajar. Analisis deskriptif kualitatif digunakan untuk menjelaskan prosedur pengembangan dan laporan hasil diagnosis. Hasil penelitian menunjukkan bahwa FODi-Test memuat sembilan materi geometri (garis dan sudut, segitiga, segiempat, lingkaran, bangun ruang sisi datar, bangun ruang sisi lengkung, kekongruenan dan kesebangunan, Teorema Pythagoras, dan transformasi geometri) dengan total 100 butir soal. Butir soal dinyatakan valid oleh pakar dan reliabel berdasarkan uji coba, dengan indeks kesukaran kategori sedang, daya beda sangat baik, dan pengecoh berfungsi optimal. Respons pengguna menunjukkan penilaian yang positif terhadap kejelasan informasi dan hasil tes, kemudahan pelaksanaan, akses laporan, efisiensi, dan kepraktisan FODi-Test. Sistem juga menghasilkan laporan diagnosis lengkap berupa identitas peserta, tingkat penguasaan konsep, kesimpulan, dan rekomendasi. Selain itu, ditemukan korelasi positif antara hasil diagnosis dan capaian belajar geometri siswa. This study aims to develop the Four-Tier Online Diagnostic Test (FODi-Test), a web-based diagnostic assessment system designed to identify junior high school students’ understanding of geometry using four-tier test items. Specifically, this study describes the development procedures of FODi-Test, analyzes its validity and reliability, examines item characteristics, reports user responses, explains the diagnostic information generated by the system, and investigates the correlation between diagnostic results and students’ geometry achievement. The research employed the ADDIE development model (Analyze, Design, Develop, Implement, Evaluate) with 131 junior high school students in the Special Region of Yogyakarta as participants. Research instruments included validation sheets, user response questionnaires, and documentation. Quantitative descriptive analysis was used to evaluate validity, reliability, item difficulty index, discrimination index, distractor effectiveness, user responses, and correlations with learning outcomes, while qualitative descriptive analysis was applied to describe the development procedure and diagnostic reporting. The results show that FODi-Test consists of nine geometry topics—lines and angles, triangles, quadrilaterals, circles, polyhedra, curved-surface solids, congruence and similarity, the Pythagorean Theorem, and geometric transformations—with a total of 100 test items. The items were validated by experts and proven reliable through field testing, with moderate difficulty levels, very good discrimination indices, and effective distractors. Users expressed positive respons regarding the clarity of information and test results, the ease of test administration and report access, and the efficiency and practicality of using the FODi-Test system. The system generated comprehensive diagnostic reports containing participant identity, concept mastery, conclusions, and learning recommendations. In addition, a positive correlation was found between diagnostic test results and students’ geometry achievement.
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| Item Type: | Thesis (S3) |
|---|---|
| Additional Information: | https://scholar.google.com/citations?user=agh_4UgAAAAJ&hl=id ID Sinta Dosen Pembimbing Tatang Herman: 5986217 Siti Fatimah: 5978161 Jarnawi Afgani D: 5974544 |
| Uncontrolled Keywords: | diagnostik, four-tier, geometri, tes, website diagnostic, four-tier, geometry, test, website |
| Subjects: | L Education > LB Theory and practice of education L Education > LB Theory and practice of education > LB1603 Secondary Education. High schools Q Science > QA Mathematics |
| Divisions: | Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Pendidikan Matematika - S3 |
| Depositing User: | Anggit Prabowo |
| Date Deposited: | 18 Dec 2025 08:18 |
| Last Modified: | 18 Dec 2025 08:18 |
| URI: | http://repository.upi.edu/id/eprint/145809 |
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