PENGEMBANGAN DAN VALIDASI INSTRUMEN BERPIKIR KOMPUTASIONAL MATERI SISTEM KOMPUTER
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Abstract
Penelitian ini bertujuan mengembangkan dan memvalidasi instrumen tes berpikir komputasional pada materi Sistem Komputer untuk siswa SMP. Penelitian menggunakan metode Research and Development (R&D) dengan model 4D yang meliputi tahap define, design, dan develop. Subjek penelitian terdiri atas tiga validator ahli dan 15 siswa kelas VIII SMP Negeri 9 Langsa pada uji coba terbatas. Data dikumpulkan melalui observasi, wawancara, dokumentasi, lembar validasi ahli, dan tes. Analisis data menggunakan indeks Aiken’s V, korelasi Pearson product-moment, dan koefisien Cronbach’s alpha. Hasil penelitian menunjukkan bahwa instrumen memperoleh nilai Aiken’s V sebesar 0,967 yang menunjukkan validitas isi yang tinggi. Pada uji coba terbatas, sebanyak 17 dari 20 butir menunjukkan bukti validitas empiris awal, sedangkan tiga butir tidak memenuhi kriteria yang ditetapkan. Koefisien Cronbach’s alpha sebesar 0,918 diperoleh dari 20 butir pada uji coba awal dan menunjukkan konsistensi internal yang tinggi. Hasil tersebut memberikan bukti awal mengenai validitas isi, validitas empiris butir, dan konsistensi internal instrumen pada uji coba terbatas. Penelitian selanjutnya disarankan melakukan uji coba pada skala yang lebih luas untuk memperoleh bukti empiris yang lebih kuat dan komprehensif.
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References
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