| Summary: | <p>Pada proses penilaian diperlukan instrumen penilaian yang dapat mengukur semua aspek kompetensi peserta didik yang menuntut peserta didik untuk aktif, salah satunya dengan menerapkan penilaian autentik. Subjek penelitian ini yaitu peserta didik suatu SMA di Bergas. Tujuan penelitian adalah mengembangkan instrumen penelitian autentik pada materi senyawa hidrokarbon yang valid, reliabel, dan efektif. Jenis penelitian ini adalah Research and Development. Prosedur pengembangan produk melalui tahap pendahuluan dan pengembangan. Pada tahap pendahuluan terbagi menjadi dua, yaitu studi empirik dan studi pustaka. Tahap pengembangan melalui beberapa bagian, yaitu 1) menyusun jenis instrumen, 2) validasi pakar, 3) uji coba skala kecil, 4) uji coba skala besar dan 5) implementasi produk. Pada penelitian ini disusun instrumen penilaian autentik pada materi senyawa hidrokarbon. Hasil analisis validasi pakar diperoleh nilai validasi instrumen 3,52 dengan kategori sangat baik. Hasil uji coba dan implementasi pada penelitian ini menunjukkan bahwa instrumen penilaian autentik dinyatakan reliabel. Hasil analisis uji coba skala kecil menunjukkan reliabilitas instrumen sebesar 0,88 dan skala besar diperoleh sebesar 0,88. Hasil tahap implementasi diperoleh angka reliabilitas instrumen sebesar 0,86. Tingkat keefektifan instrumen pada tahap uji coba mencapai 95,67% dengan kategori sangat baik dan pada tahap implementasi mencapai 95,58% dengan kategori sangat baik. Hasil penelitian memperoleh instrumen penilaian autentik yang telah dinyatakan valid, reliabel, dan efektif. </p>The assessment process required instruments that can measure all aspects of the competence of learners and they are actively involved in the assessment process by implementing one application of authentic assessment. The subjects is SMA in Bergas. The purpose of this research is to develop authentic research instruments to the hydrocarbon material in X grade are valid, reliable, and effective. This research is a Research and Development. Product development procedures phase through preliminary stage and development stage. Preliminary stage is divided into empirical studies and literature. Development stage is performed through several parts, 1) develop the type of instrument, 2) validation of experts, 3) small-scale trials, 4) large-scale trials and 5) the implementation of the product. In this study the type of instrument that is composed of authentic assessment instrument in hydrocarbon material. The results of the analysis of the expert validation instruments authentic assessment instrument validation value of 3.52 was obtained with a very good category. The results of the testing and implementation of this study indicate that the instrument can be declared reliable authentic assessment. The results of the analysis of smallscale trials showed reliability of the instrument was 0.88 and on a large-scale instrument reliability obtained by 0.88. The results obtained by the implementation phase of instrument reliability of the instrument was 0.86. The effectiveness of the instrument in the test phase reaches 95.67% with very good categories and at the implementation stage reached 95.58% with very good category. The results of the research and development of authentic assessment instruments have been declared valid, reliable, and effective.
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