Electronic Theses and Dissertation

Green chemistry merupakan materi yang diajarkan kepada peserta didik kelas X mencakup proses pemecahan masalah lingkungan. Salah satu cara untuk menunjukkan adanya suatu masalah dalam soal ialah melalui gambar (piktorial). Tujuan dari penelitian ini adalah menganalisis kelayakan instrumen tes berupa soal-soal berbasis piktorial. Jenis penelitian yang dilakukan adalah penelitian pengembangan atau Research and Devolopment (R&D) dengan model ADDIE. Tahapan yang dilakukan dalam penelitian ini hanya sampai tahap development dikarenakan hanya sebatas mengukur kualitas produk. Subjek dalam penelitian ini peserta didik kelas XI-7 sebanyak 25 orang. Pengumpulan data dilakukan menggunakan instrumen validasi ahli, angket respon peserta didik dan guru. Soal yang dikembangkan sebanyak 25 soal. Berdasarkan uji validitas untuk melihat kelayakan instrumen tes menggunakan indeks Aiken’s diperoleh hasil 25 soal valid dengan nilai 0,97 kategori sangat tinggi, dan nilai IRA (Inter-rater Agreement) sebesar 0,98 kategori sangat kuat. Setelah dilakukan uji coba, hasil validitas butir soal yang diperoleh menunjukkan 12 soal valid dengan nilai reliabilitas sebesar 0,88 kategori sangat tinggi. Hasil uji tingkat kesukaran, daya beda, dan pengecoh dari 12 butir soal kategori valid diperoleh bahwa sebagian besar soal memiliki tingkat kesukaran kategori sedang, dan memiliki daya pembeda yang baik, serta efektivitas pengecoh yang baik. Tanggapan peserta didik terhadap instrumen tes berbasis piktorial diperoleh persentase rata-rata sebesar 91,6% kategori sangat baik, dan tanggapan guru diperoleh rata-rata sebesar 94,6% kategori sangat baik yang menunjukkan respon positif terhadap produk yang dikembangkan.
Kata Kunci: tes piktorial, model ADDIE, green chemistry, analisis butir soal.

Green chemistry is a subject taught to 10th-grade students that includes processes for solving environmental problems. One way to highlight an issue in a test question is through pictorial representation. This study aims to analyze the feasibility of a pictorial-based test instrument. The type of research conducted is Research and Development (R&D) using the ADDIE model. The stages in this study were limited to the development phase due to the focus on measuring the quality of the product. The subjects of this study were 25 students from class XI-7. Data collection was carried out using expert validation instruments, and questionnaires for student and teacher responses. A total of 25 questions were developed. Based on the validity test using Aiken’s index to assess the feasibility of the test instrument, all 25 questions were deemed valid with a score of 0.97, which falls under the very high category, and an IRA (Inter-rater Agreement) score of 0.98, which is categorized as very strong. After conducting trials, the item validity results showed that 12 questions were valid, with a reliability score of 0.88, which falls under the very high category. The difficulty level, discrimination index, and distractor effectiveness tests for the 12 valid questions revealed that most of the questions had a medium difficulty level, good discrimination power, and effective distractors. The student responses to the pictorial-based test instrument indicated an average percentage of 91.6% in the very good category, and teacher responses showed an average of 94.6% in the very good category, indicating a positive response to the developed product. Keywords: pictorial test, ADDIE model, green chemistry, itesm analysis.