MoIP-ST An Instrument to Measure Students Problem Solving Skills on Momentum and Impulse
Abstract
Abstract This research aims to develop the MoIP-ST (Momentum and Impulse Problem-Solving Test) instrument to measure students' problem-solving abilities according to the stages of problem-solving skills. The research method used is 4). The research participants were 64 students, consisting of 32 rural and 32 urban 10th-grade students in East Java, who were randomly selected. The first analysis is a multi-rater Rasch measurement based on the results of expert validation, which indicates that item I1 needs improvement. The second analysis is the analysis of the MoIP-ST instrument using the Rasch model, which shows that overall the items on the MoIP-ST are valid and reliable with a Cronbach Alpha of 0.87. The third analysis is the use of the MoIP-ST, which shows that the problem-solving ability of rural students is lower than that of urban students. Student problem-solving needs to be improved through models, methods, learning models, and teaching materials that support problem-solving.
Keywords test instrument, problem solving skills, physics learning.
Abstrak Penelitian ini bertujuan untuk mengembangkan instrumen MoIP-ST (Momentum and Impulse Problem-Solving Test) untuk mengukur kemampuan memecahkan masalah siswa sesuai dengan tahapan kemampuan memecahkan masalah. Metode yang digunakan penelitian adalah 4). Partisipan penelitian adalah 64 siswa yang terdiri dari 32 siswa pedesaan dan 32 siswa perkotaan kelas 10 di Jawa Timur yang dipilih secara acak. Analisis pertama adalah pengukuran Rasch multi-rater dari hasil validasi ahli menunjukkan bahwa item I1 perlu perbaikan. Analisis kedua adalah analisis instrumen MoIP-ST menggunakan Rasch Model menunjukkan secara keseluruhan item pada MoIP-ST valid dan reliabel dengan Cronbach Alpha sebesar 0,87. Analisis ketiga adalah penggunaan MoIP-ST menunjukkan bahwa kemampuan pemecahan masalah siswa pedesaan lebih rendah dibandingkan siswa perkotaan. Pemecahan masalah siswa perlu ditingkatkan melalui model, metode, model pembelajaran, dan bahan ajar yang mendukung pemecahan masalah.
Kata kunci instrumen tes, keterampilan pemecahan masalah, pembelajaran fisika.
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