THE DEVELOPMENT OF THREE TIER DIAGNOSTIC TEST TO IDENTIFY STUDENT MISCONCEPTION IN CHEMICAL BONDING ON 10TH GRADER

Abstract

Telah dilakukan penelitian pengembangan tes diagnostik three tier untuk mengidentifikasi miskonsepsi siswa pada materi Ikatan Kimia dengan menggunakan program PHP-MySQL. Penelitian ini dilakukan dengan tujuan  untuk mengetahui kelayakan tes diagnostik three tier berdasarkan kriteria isi, konstruk dan bahasa. Selain itu untuk mengetahui reliabilitas dan efektivitas tes diagnostik three tier berdasarkan hasil uji coba terbatas. Jenis penelitian ini adalah pengembangan dengan menggunakan model 4-D terdiri atas empat tahap yaitu pendefinisian (define), perancangan (design), pengembangan (develop) dan penyebaran disseminate), namun penelitian ini hanya dibatasi hingga tahap pengembangan. Uji coba dalam penelitian ini dilakukan dua kali di SMAN 18 Surabaya, uji coba I dilakukan di kelas X MIA 5 dengan jumlah siswa 20 orang untuk mendapatkan hasil berupa tingkat kesukaran, daya beda, dan reliabilitas butir tes. Uji coba II dilakukan di kelas X MIA 3 dengan jumlah siswa 10 untuk mengetahui letak miskonsepsi siswa dan efektivitas tes diagnostik three tier dalam mengidentifikasi miskonsepsi siswa. Hasil dari validasi butir tes berdasarkan kriteria isi, konstruk dan bahasa berturut-turut adalah 82%, 83% dan 80,75%, sehingga dikategorikan sangat layak. Validasi media omputer tes diagnostik three tier pada kriteria 1 tentang tampilan media sebesar 83% dan pada kriteria 2 tentang kemudahan penggunaan media sebesar 85,83%, sehingga dikategorikan sangat layak. Sedangkan tingkat reliabilitas yang diperoleh adalah 0,968 yang berarti sangat tinggi dan nilai efektivitas media sebesar 67,12% yang berarti efektif.

Kata Kunci:Tes diagnostik three tier, ikatan kimia, miskonsepsi, kelayakan

There had been done a research about the development of three tier diagnostic test to identify student’s misconception in chemical bonding supported by program called PHP-MySQL. The aims of the reaseach is knowing the feasibility of three tier diagnostic test based on construct, content, and linguistic validity, and also to know the reliability of the test and the effectiveness of three tier diagnostic test in identifying the student’s misconception based on the result of limited trial. The type of this research is development research using 4-D model that consist of four steps, that are define, design, develop and disseminate, but this research is limited and ended up at develop phase. The limited trial in this research is done two times at SMAN 18 Surabaya. First limited trial was done at X MIA 5 with 20 students to get data regarding item difficulty and item discrimination and reliability of the three tier diagnostic tests. The second limited trial was done at X MIA 3 with 10 students to get data of students’ misconception and effectiveness of three tier diagnostic tests in identifying misconception. The result of validity scoring based on contain, construct, and language respectively 82%, 83% dan 80,75%, thus categorized as very valid. The validity of three tier diagnostic test media obtained at indicator 1 regarding display of media is 83%, at indicator 2 regarding the ease in using media obtained 85,83%, thus categorized as very valid . The reliability of the test obtained is 0,968 which is categorized as very reliable and the effectiveness of three tier diagnostic test media obtained is 67,12% which is categorized as effective.  

Key word : Three tier diagnostic tests,  chemical bonding, misconseption, feasibility