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All Journal DWIJA CENDEKIA: Jurnal Riset Pedagogik Orbital: Jurnal Pendidikan Kimia
Pratiwi, Ravensky Yurianty
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Humanities Chemistry Education Mathematics Social Sciences Other

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Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Multipel Representasi pada Materi Larutan Elektrolit dan Non Elektrolit Indriani, Anggun Tyra; Yuniar, Yuniar; Pratiwi, Ravensky Yurianty
Orbital: Jurnal Pendidikan Kimia Vol. 7 No. 2 (2023): Orbital: Jurnal Pendidikan Kimia
Publisher : Chemistry Education Department of Education and Teaching Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/ojpk.v7i2.20185

Abstract

This research aims to produce valid student worksheets (LKPD) based on multiple representations on electrolyte and non-electrolyte solution material and to determine student responses to the LKPD that has been developed. This research is research and development. The research design uses the ADDIE model, but only up to the development stage. Data collection instruments used interview sheets, validation sheets and questionnaires. LKPD validation involves 3 validators, namely media, material and language experts. The subjects in this study involved 3 students for one-t-one trials and 12 students for small group trials. The research results showed that the LKPD developed was very valid with a percentage of 85,82%, of which 89,13% of the media expert validators were in the very valid category, 85,00% of the material expert validators were in the very valid category and 83,33% of the language validators were in the very valid category. Students' responses to LKPD based on multiple representations on electrolyte and non-electrolyte solution material were categorized as very good with a percentage of 91,83%, where one-to-one trials obtained a percentage of 90,27% with a very good and test category. Trying a small group (small group trial) obtained a percentage of 93,40% in the very good category.
Online Test Instrument to Measure Students’ Critical Thinking Ability Astuti, Resti Tri; Dewi, Mutia; Pratiwi, Ravensky Yurianty
DWIJA CENDEKIA: Jurnal Riset Pedagogik Vol 7, No 1 (2023): April 2023
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jdc.v7i1.71328

Abstract

Penelitian ini bertujuan menghasilkan instrumen tes online untuk mengukur kemampuan berpikir kritis mahasiswa yang valid secara logis, valid secara empiris, dan reliabel. Model pengembangan dalam penelitian ini adalah model Tessmer yang terdiri dari beberapa tahap yaitu Tahap Preliminary, Self-Evaluation, Prototyping (validasi, evaluasi dan revisi) dan Field Test. Subjek uji coba penelitian ini yaitu mahasiswa semester 3 program studi Pendidikan Kimia di salah satu perguruan tinggi di Palembang. Teknik pengumpulan data yaitu tes, angket, dan wawancara. Instrumen yang digunakan yaitu lembar validasi, lembar angket respon mahasiswa dan wawancara.  Teknik analisis data yaitu analisis kualitatif dan kuantitatif menggunakan SPSS IBM 25. Hasil penelitian menunjukkan bahwa instrumen soal online untuk mengukur kemampuan berpikir kritis mahasiswa pada mata kuliah kimia analitik memenuhi kriteria. Hasil validasi ahli mendapatkan persentase sebesar 88,48% dengan kategori sangat valid. Respon mahasiswa terhadap instrumen menunjukkan soal tersebut dalam kategori praktis. Hasil validasi secara empiris diperoleh instrumen tes online sebanyak 17 soal yang valid dan 3 soal yang tidak valid. Hasil reliabilitas soal diperoleh nilah Cronbach Alpha sebesar 0,712 yang artinya instrumen tes bersifat reliabel.
Co-Authors Astuti, Resti Tri Indriani, Anggun Tyra Mutia Dewi Yuniar Yuniar