| dc.description |
Abstrak: Instrumen kognitif keterampilan proses sains siswa masih belum tersedia dengan
baik sehingga guru masih kesulitan dalam menilai kemampuan keterampilan proses sains
siswa dikarenakan harus memerlukan waktu yang lama untuk mengamati siswa satu
persatu melalui lembar observer. Untuk itu dilakukan pengembangan instrumen kognitif
keterampilan proses sains siswa yang bertujuan untuk mendeskripsikan (1) validitas
instrumen kognitif, (2) reliabilitas instrumen kognitif, dan (3) tingkat kesukaran butir soal
instrumen kognitif. Penelitian ini merupakan penelitian pengembangan yang mengacu pada
model pengembangan Borg and Gall. Teknik analisis data berupa validasi instrumen
kognitif, reliabilitas instrumen kognitif, dan tingkat kesukaran butir soal instrumen
kognitif, menggunakan analisis program Rasch. Hasil penelitian menunjukkan: (1)
Validitas instrumen yang dikembangkan tergolong dalam kategori valid (2) Reliabilitas
instrumen yang dikembangkan tergolong istimewa, dan (3) Tingkat kesukaran butir soal
instrumen yang dikembangkan terbagi dalam empat tingkatan yaitu 2 butir soal kategori
sangat sulit, 2 butir soal kategori sulit, 4 butir soal kategori mudah, dan 1 butir soal kategori
sangat mudah. Diperoleh simpulan bahwa instrumen kognitif keterampilan proses sains
yang dikembangkan berkualitas digunakan dalam evaluasi pembelajaran.
Kata kunci: Instrumen Kognitif, Keterampilan Proses Sains
Abstract: Cognitive instrument of students’ science process skill was not available yet so
that teachers still have difficulties in assessing students’ science process skill because it
takes a lot of time to observe the students one by one using observation sheet. Therefore,
the development of cognitive instrument of students’ science process skill is done which
aims to describe (1) the cognitive instrument’s validity, (2) the cognitive instrument’s
reliability, and (3) the cognitive instrument items’ difficulty level. This research is a
development research which refers to Borg and Gall’s development model. Data analysis
technique is cognitive instrument’s validity, reliability, and items’ difficulty level using
Rasch’s program analysis. Research result shows that: (1)The developed instrument
validity is categorized as valid (2) The developed instrument reliability is categorized as
outstanding, and (3) The instrument items’ difficulty levels are divided into four levels,
which are 2 items are very difficult, 2 items are difficult, 4 items are categorized as easy,
and 1 item is very easy. It can be concluded that the cognitive instrument of students’
science process skill is qualified to be used in learning evaluation.
Keywords: cognitive instrument, science process skill |
|