Pengembangan Instrumen Asesmen Berbasis Keterampilan Proses Sains Pada Materi Stoikiometri

The purposes of this research were to develop the assess­ment instrument based on science process skill and to describe teacher's response about developed assesment instrument. This research used Research and Develop­ment (R&D) method. This research was guided by need assesment questionnaire instrument, validation's authority, teacher responses instrument. This assessment instrument characteristics was the assessment instrument that mea­sures students' cognitive skills associated with science process. The validation re­sult was obtain­ed percentage on aspects in suitability of content, readability, and construction were 93.75 %; 84,61 %; and 94 %, respectively. The percentages of teacher res­pon­­ses to assessment instrument was obtained on aspects in suitability of content, readability, and construction were 89,37%; 86,15%; and 87,75%. Thus, assessment instruments developed have very high criteria with the average percentage of 90,78 %. Penelitian dan pengembangan ini ber­tujuan un­tuk mengembangkan instrumen ases­men berbasis keterampilan proses sains (KPS) dan mendeskripsikan tanggap­an guru mengenai instrumen asesmen. Metode yang diguna­kan dalam penelitian ini adalah Research and Development (R&D). Penelititan ini menggunakan instrumen angket analisis ke­bu­tuhan, instrumen validasi ahli, instrumen tanggapan guru. Karakteristik instrumen asesmen ini adalah instrumen asesmen yang mengukur ranah kognitif siswa yang berhubungan dengan keterampilan proses sains. Ber­­dasarkan hasil vali­dasi ahli diperoleh persentase asesmen pada aspek kese­suaian isi, keter­bacaan, dan kon­struk­si sebesar 93,75%; 84,61%; dan 94,00%. Persentase tanggapan guru pada aspek uji ke­se­suaian isi, keterbacaan, dan kontruksi adalah se­besar 89,37%; 86,15%; dan 87,75%. Jadi, instrumen asesmen yang dikembangkan memiliki kriteria sangat tinggi dengan rata-rata persentase sebesar 90,78%