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All Journal Jurnal Pengajaran MIPA THABIEA (JOURNAL OF NATURAL SCIENCE TEACHING) Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Hydrogen: Jurnal Kependidikan Kimia DIKSAINS : Jurnal Ilmiah Pendidikan Sains
Nursa'adah, Euis
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Mathematics Physics Other

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CONTENT VALIDITY RATIO AND CONFIRMATORY FACTOR ANALYSIS OF THREE TIER TEST INSTRUMENT ON SOLUTION BALANCE CONCEPTS Tuherni, Erni; Nursa'adah, Euis; Affifah, Isriyanti
Jurnal Pengajaran MIPA Vol 25, No 1 (2020): Jurnal Pengajaran MIPA - April 2020
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v24i1.17271

Abstract

 Three tier test is one of the instruments which can be used to detect conception level of the students. This developed-three tier test instrument consists of three levels of question. The first tier is multiple choice, the second tier is reason to choose the answer, and the third tier is affirmative question about the belief of the answers chosen on the first and second tier. An instrument can be used as it well-qualified; that can be seen from its validity and reliability value.  One of the methods that used to measure the instrument’s validity is Content Validity Ratio (CVR) and Confirmatory Factor Analysis (CFA) while a method that used to measure the instrument’s reliability is cronbach test.  The quality of tree tier instrument test, based on CVR result in an average 0.64, indicates that the instrument had owned conformity content with the measured-domain, and CFA in a MSA-average 0.805, indicates that the instrument had been valid and can develop the construct that measured in accordance with the developed-indicators as well as the three tier instrument’s reliability in Cronbach’s Alpha value 0.927 insists that the three tier instrument that developed has a quite good reliability value. Among 27 instruments that had been analyzed, 12 instruments of them considered valid based on CVR and CFA examination result.  ABSTRAK Three tier adalah salah satu instrumen yang dapat digunakan dalam mendeteksi tingkat konsepsi yang terjadi pada peserta didik. Instrument Three Tier yang dikembangkan ini meliputi 3 tingkatan soal. Pada tingkat pertama (First-tier) berupa pilihan ganda, tingkat kedua (Second-tier) berupa alasan dalam pemilihan jawaban, dan tingkat ketiga (Third-tier) berupa pertanyaan penegasan tentang keyakinan dari jawaban yang telah dipilih pada tingkat satu dan dua. Suatu instrumen dapat digunakan apabila memiliki kualitas yang baik dilihat dari nilai validitas dan reliabilitas. Salah satu metode yang digunakan untuk mengukur validitas instrumen yaitu dengan menggunakan content validity ratio (CVR) dan confirmatory factor analysis (CFA). Kualitas instrument three tier berdasarkan hasil CVR (Content Validity Ratio) dengan rata-rata nilai 0,64 menunjukkan instrumen telah memiliki kesesuaian isi dengan domain yang diukur, dan CFA (Confirmatory Factor Analysis) dengan nilai MSA rata-rata sebesar 0,805 menunjukkan bahwa instrumen telah valid dan dapat membangun konstruk yang diukur sesuai dengan indikator yang dikembangkan serta realiabilitas instrument three tier dengan nilai Cronbach’s Alpha sebesar 0,927 mengungkapkan bahwa instrument three tier yang dikembangkan memiliki nilai reliabilitas yang cukup baik. Dari 27 instrumen yang dianalisis, terdapat 12 instrument three tier yang valid berdasarkan hasil uji CVR dan CFA.
Students’ Environmental Literacy: Environment Education Assisted E-Booklet on Biodiversity Gegas Dam Indonesia Context Nursa'adah, Euis; Maryani, Budi; Ruyani, Aceng
THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING Vol 4, No 2 (2021): THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING
Publisher : Institut Agama Islam Negeri Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21043/thabiea.v4i1.11599

Abstract

Indonesia is one of the world's mega biodiversity needs to be preserved, due to estimated the extinction rate of one species is estimated at 10,000 times per year caused by human activity. Various efforts have been made by various sectors to preserve the environment, including in education through Environmental Education (EE). This research aim to implement Environmental Literacy (EL) domain in Biodiversity learning assisted validated e-booklet (CVR0,67) to enhance student knowledge, cognitive skills (identification of issues, analysis of issues, and action plans), attitude (verbal commitment, environmental sensitivity, and feelings towards the environment), and responsible behavior towards the environment. The EL domains related to real context of biodiversity in Gegas Dam is implemented in order to avoid the availability of disconnecting youth generation with their native biodiversity. Data analysis and identification of diversity- diversity index, homogeneity, dominance and correlation among chemical-physical environmental factors- are presented in an e-booklet to strengthen students' knowledge and cognitive skills, while attitude and responsibility behavior are strengthened by presenting local, national and global environmental issues. Through one group pre-posttest design, 30 high school students in South Sumatra as youth generation were involved in this research. Students’ EL is measured by 66 questions EL domain. The results showed that students' verbal commitment got the highest n-gain score (0.62 medium), while environmental sensitivity was the smallest (0.2 low). These results indicate that verbally students or youth generation already know how to conserve the environment. Cultivation of environmental conservation habits could be continuously improved by realizing their verbal ideas.
Study of Decapod Diversity and Habitat in the Coastal Line Area of Bengkulu City Beach Chairunisa, Aprilia; Primair Yani, Ariefa; Parlindungan , Deni; Nursa'adah, Euis; Defianti, Aprina; Karyadi , Bhakti
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 21 No. 1 (2024): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/sainmatika.v21i1.14923

Abstract

This research aims to identify abundance, species diversity, dominance, and evenness and to determine the type of decapod habitat on the coast of Bengkulu City. The method used is the survey method. The sampling location was divided into three stations: Pasir Putih Beach, Panjang Beach, and Kualo Beach. The sampling technique used transects, at each station, an area of 300 m was taken. Decapod diversity was analyzed using the Shannon-Wiener formula, the dominance index (C) was analyzed using Simpson's dominance index, and the evenness index was calculated using Pielou. The results of the research show that on the coast of Bengkulu City, decapod species consisting of six families were found. The diversity index shows that at stations I (0.864/low), II (1.00/medium), and III (0.372/low). Dominance index at stations I (0.046/low), II (0.113/low), and III (0.003/low). Evenness index at stations I (0.415/height), II (0.466/height), and station III (0.92/height). The most common decapods found are the family Hippidae and the species Emerita emeritus, with a total of 18 individuals. The decapod habitat type on Bengkulu City Beach is a sandy beach type. Environmental parameters (DO, water pH, air humidity, light intensity, salinity, and temperature) are in conditions suitable for decapod life.
PENGEMBANGAN E-MODUL IPA TERPADU UNTUK MELATIHKAN KETERAMPILAN GENERIK SAINS SISWA SMP PADA MATERI ENERGI DALAM SISTEM KEHIDUPAN Husna, Nurul; Sutarno, Sutarno; Nursa'adah, Euis; Defianti, Aprina; Setiawan, Iwan
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 4 No. 1: Desember 2023
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.4.1.47-56

Abstract

ABSTRAK   Penelitian ini merupakan penelitian dan pengembangan (R&D) yang bertujuan untuk menghasilkan produk dan mengetahui kelayakan e-modul IPA Terpadu untuk melatihkan keterampilan generik sains siswa pada materi energi dalam sistem kehidupan. Model pengembangan yang digunakan pada penelitian ini adalah model pengembangan 4D yang pada penerapannya dibatasi menjadi 3D yaitu define, design, dan development. Hasil analisis angket kebutuhan guru di sekolah tersebut didapatkan persentase rata-rata sebesar 91% dengan kategori “sangat setuju”, sedangkan hasil analisis angket kebutuhan siswa di sekolah tersebut didapatkan persentase rata-rata sebesar 86% dengan kategori “sangat setuju”. Berdasarkan hasil yang didapat melalui penyebaran angket kebutuhan guru dan siswa tersebut bahwa e-modul yang dikembangkan sangat dibutuhkan oleh guru dan siswa di sekolah tersebut. Hasil validasi ahli materi terhadap produk akhir e-modul diperoleh persentase skor rata-rata sebesar 87,5% dengan kategori “sangat layak”, sedangkan pada validasi ahli media terhadap produk akhir emodul diperoleh persentase skor rata-rata sebesar 100% dengan kategori “sangat layak”. Hasil uji keterbacaan produk oleh guru diperoleh persentase skor rata-rata sebesar 88% dengan kategori “sangat layak”, sedangkan hasil uji keterbacaan produk oleh siswa diperoleh persentase skor rata-rata sebesar 86,5% dengan kategori “sangat layak”. Berdasarkan hasil validasi ahli dan uji keterbacaan guru dan siswa yang telah dilakukan dapat disimpulkan bahwa e-modul yang dikembangkan sudah ”sangat layak” untuk dilanjutkan pada uji coba lapangan.   Kata kunci: Penelitian dan Pengembangan, E-Modul, Keterampilan Generik Sains   ABSTRACT   This research is a research and development (R&D) which aims to produce a product and find out the feasibility of the integrated science e-module to train students' generik science skills on energy matter in living systems. The development model used in this study is a 4D development model which in its application is limited to 3D, namely define, design, and development. The results of the questionnaire analysis of teacher needs at the school obtained an average percentage of 91% with the "strongly agree" category, while the results of the questionnaire analysis on student needs at the school obtained an average percentage of 86% with the "strongly agree" category. Based on the results obtained through the distribution of the questionnaire on the needs of teachers and students, the e-module developed is very much needed by teachers and students at the school. The results of material expert validation on the final e-module product obtained an average score percentage of 87.5% with the "very decent" category, while the media expert validation of the e-module final product obtained an average score percentage of 100% with the “very decent” category. The results of the product readability test by the teacher obtained an average score percentage of 88% in the "very decent" category, while the results of the product readability test by students obtained an average score percentage of 86.5% in the "very decent" category. Based on expert validation and the teacher and student readability tests that have been carried out, it can be said that the e-module developed is feasible to be continued in field trials.   Keywords: Research and Development, E-Module, Science Generic Skill
PENGEMBANGAN MULTIMEDIA INTERAKTIF BERBASIS ANDROID PADA MATERI PEMANASAN GLOBAL UNTUK MEMBEKALKAN LITERASI SAINS SISWA SMP Auliani, Diah Mulia; Sutarno, M; Nursa'adah, Euis; Lubis, Indra Sakti; Uliyandari, Mellyta
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 4 No. 2: Juni 2024
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.4.2.129-138

Abstract

ABSTRAK   Penelitian ini merupakan penelitian pengembangan (Research and Development) yang bertujuan untuk mengembangkan produk Multimedia Interaktif Berbasis Android pada Materi Pemanasan Global untuk Membekalkan Literasi Sains Siswa SMP. Penelitian dilakukan di SMPN 4 Kota Bengkulu. Model pengembangan yang digunakan adalah 4D yaitu Define (tahap pendefisian), Design (tahap perancangan), Develop (tahap pengembangan), dan Disseminate (tahap penyebaran). Namun penelitian ini dibatasi sampai tahap develop. Produk multimedia interaktif berbasis android yang dikembangkan memuat materi yang dapat membekalkan aspek-aspek literasi sains yaitu, aspek konten, aspek konteks, dan aspek proses. Teknik analisis data validasi ahli menggunakan formula aiken V. Tahap Define terdiri atas analisis ketersedian media pembelajaran, analisis kebutuhan guru dan peserta didik, analisis RPP, dan rancangan instrumen tahap define. Tahap Design terdiri dari membuat rancangan multimedia interaktif dan rancangan instrumen evaluasi produk. Tahap develop terdiri atas pengembangan produk multimedia interaktif, validasi ahli, uji keterbacaan, dan respon peserta didik. Berdasarkan hasil validasi ahli media diperoleh total rata-rata nilai koefisien aiken sebesar 0.96 kategori “validitas tinggi”, hasil validasi ahli materi diperoleh total rata-rata nilai koefisien aiken sebesar 0.76 dalam kategori “validitas sedang”. Uji keterbacaan produk oleh guru memperoleh presentase rata-rata 95.78% dalam kategori “sangat baik” dan respon peserta didik memperoleh presentase rata-rata 90.20% dalam kategori “sangat baik”. Berdasarkan hasil tersebut dapat disimpulkan bahwa multimedia interaktif yang dikembangkan valid dan sangat layak untuk diuji cobakan dalam skala luas.   Kata kunci: Multimedia Interaktif Berbasis Android, Pemanasan Global, Literasi Sains, Siswa SMP   ABSTRACT   This research is a development research (Research and Development) that aims to develop Android-based interactive multimedia products on Global Warming Materials to Provide Science Literacy for Junior High School Students. The research was conducted at SMPN 4 Bengkulu City. The development model used is 4D, namely Define (definement stage), Design (design stage), Develop (development stage), and Disseminate (deployment stage). However, this research is limited to the develop stage. The android-based interactive multimedia product that was developed contains material that can provide aspects of scientific literacy, namely, content aspects, context aspects, and process aspects. The expert validation data analysis technique uses the AIken V formula. The Define phase consists of an analysis of the availability of learning media, an analysis of the needs of teachers and students, an analysis of lesson plans, and the design of the instrument in the define stage. The Design phase consists of making interactive multimedia designs and product evaluation instrument designs. The develop stage consists of developing interactive multimedia products, expert validation, readability testing, and student responses. Based on the results of the media expert validation, the total average value of the aiken coefficient was 0.96 in the "high validity" category, the results of the material expert validation obtained the total average aiken coefficient value of 0.76 in the "medium validity" category. The product readability test by the teacher obtained an average percentage of 95.78% in the "very good" category and student responses obtained an average percentage of 90.20% in the "very good" category. Based on these results, it can be concluded that the interactive multimedia developed is valid and very feasible to be tested on a wide scale.   Keywords: Android-Based Interactive Multimedia, Global Warming, Scientific Literacy, Junior High School Students
REKONSTRUKSI BAHAN AJAR IPA BERBASIS MER (Model of Educational Reconstruction) TENTANG PENGETAHUAN LOKAL MASYARAKAT PADA TANAMAN JARAK PAGAR TERINTEGRASI MATERI PARTIKEL PENYUSUN BENDA DAN MAKHLUK HIDUP Fadhilah, Annisa Alya; Nursa'adah, Euis; Sakti, Indra; Defianti, Aprina; Wardana, Rendy Wikrama
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 4 No. 1: Desember 2023
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.4.1.57-65

Abstract

ABSTRAK   Pembelajaran IPA merupakan salah satu pembelajaran yang dapat digunakan dengan pendekatan etnosains. Pembelajaran yang memadukan etnosains dan sains ilmiah mampu meningkatkan pemahaman peserta didik terhadap konsep-konsep sains ilmiah dan pembelajaran lebih bermakna. Penelitian ini bertujuan merekonstruksi bahan ajar IPA tentang pengetahuan lokal masyarakat tanaman jarak pagar berbasis MER (Model of Educational Reconstruction) dengan terintegrasi materi partikel penyusun benda dan makhluk hidup yang layak. Prosedur pengembangan bahan ajar menggunakan model RnD (Research and Development) dengan 3 tahapan, yaitu Define, Design, dan Develop. Berdasarkan hasil analisis konsepsi peserta didik pada tahap define, sebanyak 62,68% peserta didik tidak paham konsep terhadap materi tersebut, sehingga perlu dimunculkan konteks etnosains dalam bahan ajar agar peserta didik lebih memahami konsep.  Berdasakan hasil validasi para ahli dengan mendapatkan skor 0,895 dan 0,87 dengan kriteria layak dan dapat diuji keefektifannya.   Kata  kunci: MER, Bahan Ajar, Etnosains, Jarak Pagar (Jatropha curcas L)   ABSTRACT   Science learning is one of the lessons that can be used with an ethnoscience approach. Learning that combines ethnoscience and scientific science can increase students’ understanding of science concepts and make learning more meaningful. This study aims to reconstruct natural science teaching materials abiut local knowledge of Jatropha curcas communities based on MER (Model of Educational Reconstruction) with integrated particle material that makes up objects and viable living things .The procedure of developing teaching materials uses the RnD (Research and Development) model with 3 stages, namely define, design, and develop. Based on the results of the analysis of students’ conceptions at the define stage, as many as 62,68% of students don’t understand the concept of the material, so it is necessary to bring up the ethnoscience context in teaching materials so that students better understand the concept. Based on the results of the validation of the experts by getting a score of 0,895 and 0,87 with feasible criteria and can be tested for effectiveness.   Keywords: MER, Teaching Materials, Ethnoscience, Jatropha (Jatropha curcas L)
Biosynthesis of Gold Nanoparticles Using Wuluh Star Fruit (Averrhoa bilimbi) for Chromium Analysis Dewi, Ria Kemala; Firdaus, M. Lutfi; Nursa'adah, Euis
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10188

Abstract

One of the heavy metals that can pollute waters is the heavy metal chromium (Cr). Chromium has many important roles in life. Chromium material is widely used by humans for various purposes, especially in the industrial world. However, the large number of uses of chromium in the industrial world and the waste it generates can have a negative impact on the environment and human health. One way to deal with chromium pollution is by analyzing the presence of chromium in waters. The aim of this research is to analyze the presence of chromium using a simple, effective, economical and accurate method, namely the biosynthesis of gold nanoparticles using samples of starfruit (Averrhoa bilimbi) as a bioreductor rich in ascorbic acid, with a colorimetric method, namely a method based on the aggregation of gold nanoparticles with ascorbic acid from starfruit, which causes a shift in plasmons and causes color changes that can be seen by the eye. Based on the analysis results, data was obtained that gold nanoparticles synthesized from the starfruit bioreductor can detect chromium with a concentration of 10 ppm with optimum conditions at pH 5, temperature 75oC, optimum incubation time of 5 minutes and gold nanoparticles are selective and sensitive for detecting chromium.
Co-Authors ACENG RUYANI Auliani, Diah Mulia Chairunisa, Aprilia Defianti, Aprina Dewi, Ria Kemala Fadhilah, Annisa Alya Indra Sakti Indra Sakti Lubis Isriyanti Affifah, Isriyanti Iwan Setiawan Karyadi , Bhakti M. Lutfi Firdaus, M. Lutfi Maryani, Budi Nurul Husna Parlindungan , Deni Primair Yani, Ariefa Sutarno Sutarno Sutarno, M Tuherni, Erni Uliyandari, Mellyta Wardana, Rendy Wikrama