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All Journal HAYATI Journal of Biosciences VALENSI Cakrawala Pendidikan Jurnal Kependidikan: Penelitian Inovasi Pembelajaran JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Penelitian dan Evaluasi Pendidikan JOURNAL OF EDUCATION Jurnal Penelitian Saintek CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) CHEMISTRY PROGRESS Jurnal Pendidikan Kimia Indonesia Jurnal Sains Dasar Jurnal Pendidikan Indonesia Jurnal Matematika & Sains Journal of Mathematical and Fundamental Sciences BERITA BIOLOGI JURNAL BIOLOGI INDONESIA ZOO INDONESIA Jurnal Penelitian Pendidikan IPA (JPPIPA) ALCHEMY Jurnal Penelitian Kimia Jurnal Pendidikan Kimia (JPKim) Indonesian Journal of Chemistry Formatif: Jurnal Ilmiah Pendidikan MIPA Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Molekul: Jurnal Ilmiah Kimia Jurnal Entomologi Indonesia Kumawula: Jurnal Pengabdian Kepada Masyarakat BIO-EDU: Jurnal Pendidikan Biologi Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Journal of Innovation in Educational and Cultural Research Zoo Indonesia INSECTA: Integrative Science Education and Teaching Activity Journal International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Makara Journal of Science UNESA Journal of Chemical Education Jurnal Pengabdian dan Pemberdayaan Masyarakat Indonesia Jurnal Elemen Kimia Jurnal Riset Pembelajaran Kimia Indonesian Journal on Learning and Advanced Education (IJOLAE)
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Development of an integrated ability assessment instrument in reaction rate material Wan Zahara Zaitu Hania; Hari Sutrisno
Jurnal Kependidikan Penelitian Inovasi Pembelajaran Vol 6, No 1 (2022)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jk.v6i1.38390

Abstract

This research aimed to develop a valid and reliable integrated ability assessment instrument (IAAI) to measure the multiple representations and chemical literacy of senior high school students related to the reaction rates. The framework developed in this research was implemented based on a 4-D model (defining, designing, developing, and disseminating). The integrated assessment consisted of five items of essay questions. The preliminary version of the IAAI was initially piloted on reviews by experts, and the paper-pencil test was given to a group of students. The obtained data were analyzed using Item Response Theory (IRT). In addition, Generalized Partial Credit Model (GPCM) model was conducted to examine the parameter quality, which estimated the test items. The content validity, construct validity, and quality of the items suggest that the integrated assessment ability instrument has a high score in validity and reliability. The analysis results of the instrument trial data indicate that the integrated abilities of students are in the medium category.
An Application of Digital Chemistry Telling (DCT) in the Basic Inorganic Chemistry Course to Improve Students’ Listening and Speaking Skills Dyah Purwaningsih; Hari Sutrisno; Kun Sri Budiasih
JOURNAL OF EDUCATION Vol 4, No 01: November 2011
Publisher : LPPM UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6871.789 KB)

Abstract

This study aims to design implementation strategies of DCT in the Basic Inorganic Chemistry course, develop an appropriate course to increase students’ active participation, and develop an evaluation system capable of providing an integrated assessment (both the learning process and outcomes) in the course. This study was conducted in two cycles for one semester during the academic year of 2008/2009. The implementation applied the principles of classroom action research consisting of four stages, i.e. planning, action implementation, observation, and reflection. The data were analyzed by grouping them into categories. The findings were as follows. Qualitatively, the classroom obser­vations showed an increasing active participation of students, both in making the DCT and in conducting discussions in English. Quantitatively, the results of the observations on the learning activities showed an average value of 4 (scale 1-5) for several aspects of DCT.
[Tis012 (H20) 24] Cls.HCl.7H20 AS A SOURCE OF TITANIUM FOR PRE ARITH ZEOLITE TITANIUM SILlKA T (TS-l) Hari Sutrisno
Jurnal Penelitian Saintek Vol 8, No 1: April 2003
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6325.115 KB) | DOI: 10.21831/jps.v8i1.5283

Abstract

Titanium silicate of MFJ type (TS-J) has been synthesised by usingtetrapropyl ammonium hydroxide (TPAOH) as organic template, tetraethyl orthosilicate (TEOS) and [Ti80J] (H]O)uJCI8.HCI.7H]O as silicon and titanium source respectively by hydrothermal method, The' zeolites have been characterised by using various well-known techniques such as X-Ray Diffraction (XRD) with WinPlotr Program, Scanning Electron Microscopy (SEM) with Electron Diffraction (ED), IR and Raman spectroscopy. The zeolite  of TS-J crystallises in the,orthorhombic  system,  space  group  Pnma,  with  a   =  20.044  A;b = 19.929 A; c = J3.400 A; a = p = y = 90°. It has been changed bycalsination (TS-JC) in the monoklinik sytem, space group P2/n.J.J, with a  = 20.068 A;  b  = J9.897 A;  c  = J 3.389 A,  a  = 90,024°; B r= 90°.
TRANSISI FASA TITATNIUM OKSIDA MELALUI KONDENSASI EX-SITU HIDROGEN TITANAT TIPE STRUKTUR LEPIDOKSROSIT Hari Sutrisno; Sunarto Sunarto
Jurnal Penelitian Saintek Vol 15, No 1: April 2010
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3666.901 KB) | DOI: 10.21831/jps.v15i1.1732

Abstract

The objectives of the research are to study of the structure type of titanium dioxide (TiO2) obtained form the ex-situ condensation of hydrated hydrogen titanates with the structure type of lepidocrocite. Hydrated hydrogen titanates were obtained by ion exchabge of H+ for Cs+ in cesium titanates by 1 M HCl solution by Chimie Douce method. The results show that TiO2 (B), anatase, and anatase-rutile mixture were obtained heat treatment of hydrated hydrogen titanate at 100, 200, 300, 500, and 600oc respectively. The powders were characterized by X-rays diffractometer (XRD), High Resolution Scanning Electron Microscopy (HRSEM) and High Resolution Transmission Electron Microscopy (HRTEM). The research indicated that the protonic titanate, H0.54 Ti1.865 0.135O4 0.5H2O ( =vacancy), lost the interlayer water by being heated up to 200oC to produce a dehydrated phase, H0.54 Ti1.865 0.135O4. Above 300oC, the dehydrated phase completely transformed to TiO2(B) and anatase was obtained as pure phase at 600oC. The phase transformed as the following process: H0.54Ti1.865 0.135O4 0.5H2O à H0.54Ti1.865 0.135O4 0.25H2Oà H0.54Ti1.865 0.135O4 à TiO2(B) à TiO2-anatase.
PREPARASI TiO2-TERSENSITIFKAN AgCl DENGAN TEKNIK REFLUKS DALAM SUASANA ASAM DAN KARAKTERISASINYA Ratna Novita Sari; Hari Sutrisno
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Vol 6 No 1 (2018): Volume 6, Nomor 1, 2018
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (817.539 KB)

Abstract

ABSTRAK: Titanium dioksida (TiO2)-tersensitifkan variasi prosen berat AgCl (TiO2@AgCl): 0; 1,3; 3,4; 8,3 dan 15,2% dihasilkan dalam suasana asam. Material TiO2@AgCl dipreparasi dari reaksi emulsi TiO2 (rutile)-teradsorpsikan ion Cl-, AgNO3, dan HNO3 dengan teknik refluks pada temperatur 150oC selama 6 jam. Keberadaan AgCl sebagai sensitiser terbentuk dari reaksi ion Cl- yang terabsorbsi pada permukaan TiO2(rutile) dengan ion Ag+ yang berasal dari larutan AgNO3. Sampel TiO2@AgCl yang berisi variasi % berat AgCl: 0; 1,3; 3,4; 8,3 dan 15,2% diperoleh dari reaksi TiO2 (rutile) teradsorpsi ion Cl- dengan variasi % berat perak (Ag): 0; 1,5; 3; 6 dan 9% yang berasal dari AgNO3. Semua TiO2@AgCl yang dihasilkan dikarakterisasi dengan X-Ray Diffraction (XRD) dan Spektrofotometer UV-Vis Diffuse Reflectance. Dalam semua sampel (TiO2@AgCl) mengandung anatase (minor), AgCl (minor) dan rutile (major), kecuali pada TiO2 tanpa AgCl hanya berisi anatase (minor) dan rutile (major). Energi celah pita (Eg) sampel TiO2@AgCl pada prosen berat AgCl: 1,3; 3,4; 8,3 dan 15,2% secara berturut-turut: 3,24; 3,00; 3,09 dan 2,95 eV, sedangkan pada TiO2 tanpa AgCl sebesar 3,05 eV. Ukuran kristal masing-masing fasa dalam TiO2@AgCl yaitu sekitar 5-9 nm untuk fasa anatase, 9-11 nm untuk fasa rutile dan 37-60 nm untuk fasa AgCl. Kata Kunci: pensensitif anorganik, teknik refluks, energi celah pita ABSTRACT: Titanium dioxide (TiO2) sensitized AgCl variations in weight percent (wt%) (TiO2@AgCl): 0; 1.3; 3.4; 8.3 and 15.2% were obtained on the acidic conditions (pH»2). Materials of TiO2@AgCl were obtained from the reaction of TiO2(rutile) adsorbed Cl- ions, AgNO3, and HNO3 via reflux technique at temperatures of 150oC for 6 hours. The existence of AgCl as sensitiser formed from the reaction of Cl-ions are absorbed on the surface of TiO2 (rutile) with Ag+ ions originating from AgNO3 solution. Samples of TiO2@AgCl that contain variations wt% AgCl: 0; 1.3; 3.4; 8.3 and 15.2% was obtained from the reaction of TiO2(rutile) adsorbed Cl- ions at variation wt% of silver (Ag): 0; 1.5; 3; 6 and 9% originating from AgNO3. All of TiO2@AgCl were characterized by X-Ray Diffraction (XRD) and UV-Vis Spectrophotometer Diffuse Reflectance. In all samples (TiO2@AgCl) contains anatase (minor), AgCl (minor) and rutile (major), except on TiO2 without AgCl only contain anatase (minor) and rutile (major). Band gap (Eg) of TiO2@AgCl at AgCl variations in wt%: 1.3; 3.4; 8.3 and 15.2% is 3.24; 3.00; 3.09 and 2.95 eV respectively, whereas the band gap of TiO2 without AgCl is 3.05 eV. The size of each crystal phase on TiO2@AgCl is about 5-9 nm for the anatase phase, 9-11 nm for the rutile phase and 37-60 nm for AgCl phase.
TRANFORMASI POLIMORFIK DAN KARAKTERISASI MIKROSTRUKTUR FASA TiO2 YANG DIHASILKAN MELALUI KALSINASI NANOPITA HIDROGEN TITANAT Hari Sutrisno
Jurnal Sains Dasar Vol 1, No 1 (2012): April 2012
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1270.524 KB) | DOI: 10.21831/jsd.v1i1.2351

Abstract

Sodium titanates were synthesized by hydrothermal method using Ti(O2)O.2H2O as the starting material in 10 M NaOH at 150°C for 72 h. Hydrogen titanate nanoribbons were obtained by ion exchange of H+ for K+ in sodium titanates by 0.1 M HCl. TiO2 (B), anatase, and anatase-rutile mixture were obtained by the calcinations of hydrogen titanate nanoribbons for 2 h at 500, 700, and 900°c respectively. Hydrogen titanate nanoribbons were characterized by X-rays Diffraction (XRD), High Resolution Scanning Electron Microscopy (HRSEM) and High Resolution Transmition Electron Microscopy (HRTEM). Microstructure of pseudo-TiO2 (B), anatase, and rutile prepared by the calcinations of hydrogen titanates have been determinated in ab initio by the Two Stage Method from powder XRD data. Hydrogen titanates nanoribbons convert into pseudo-TiO2(B) then anatase and finaly rutile structures by heat treatment. Keywords: polymorphic transformation, microstructure characterization, titanium dioxide
Pengaruh Perbandingan Mol Awal Titanium dan Perak terhadap Sifat-Sifat Fisika-Kimia TiO2-tersensitifkan AgCl Isnaya Khamida Zulfah; Hari Sutrisno
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 3, No. 2, November 2017
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1265.117 KB) | DOI: 10.15408/jkv.v0i0.5822

Abstract

Titanium dioksida (TiO2)merupakan semikonduktor yang memiliki fungsi sebagai fotokatalis, sel surya, anti bakteri, anti polutan, dan anti buram. Salah satu cara untuk meningkatkan aktifitas fungsional  TiO2dengan menggeser daerah aktifitas atau energi celah pita (Eg) dari sinar ultra violet (UV) ke daerah sinar tampak melalui penambahan zat pensensitif TiO2.Pada penelitian ini, perak klorida (AgCl) digunakan sebagai zat pensensitif TiO2. Tujuan penelitian ini untuk mengetahui pengaruh variasi perbandingan mol awal [Ti8O12(H2O)24]8.Cl8.HCl.7H2O dengan AgNO3 terhadap sifat-sifat fisik TiO2 tersensitifkan AgCl (TiO2@AgCl) yang disintesis dengan metode pengendapan basah dalam suasana asam. Variasi perbandingan awal yang digunakan yaitu perbandingan mol [Ti8O12(H2O)24]8.Cl8.HCl.7H2O :mol AgNO3sebesar 1:9, 1:10, 1:11, 1:12, dan 1:13yang dilarutkan dalam pelarut etanol (total pelarut 37.5 mL). Sampel padat TiO2@AgCl dihasilkan dengan metode pengendapan basah dalam kondisi asam melalui pengontrolan asam HNO3 pada pH~1. Sampel dihasilkan dari penguapan filtrat yang  bebas dari endapan AgCl, hingga volume yang didapat setengah dari volume awal. Sampel TiO2@AgCl dikarakterisasi dengan berbagai instrumen: Difraktometer Sinar-X (XRD),Scanning Electron Microscopy-Electron Dispersive X-Ray Analyzer (SEM-EDAX), dan Spektrofotometer UV-Vis Diffuse Reflectance. Hasil penelitian menunjukkan semua sampel TiO2@AgCl berisi 1 fasa nanopartikel (nanokristalit) TiO2 dan 3 fasa kristal yaitu rutil, anatas, dan AgCl.TiO2@AgCl memiliki bentuk morfologi berupa mikrosferik dengan ukuran berkisar 0.5-1 μm. Berdasarkan hasil analisisdengan spektrofotometer UV-Vis Diffuse Reflectance menunjukkan semua sampel TiO2@AgCl mengabsorbsi sinar ultra violet (UV) dengan Eg sebesar 2.87-3.89 eV, dan sinar tampak dengan Eg sebesar 1.60-2.40 eV. Titanium dioxide (TiO2) is a semiconductor that can be applied in the field of photocatalyst, solar cell, anti-bacterial, anti-pollutants, and anti-fogging. The functional activity of TiO2 can be increased by shifting the activity area from ultraviolet (UV) to visible through the addition of sensitizer. In this research, silver chloride (AgCl) was used as a sensitizer The objective of the research is to study the effect of the initial mole comparison of [Ti8O12(H2O)24]8.Cl8.HCl.7H2O and AgNO3on the physical properties of AgCl-sensitized TiO2(TiO2@AgCl). All TiO2@AgCl were synthesized using the wet chemical precipitation method under acidic conditions by the addition of a concentrated HNO3 with pH ~ 1. The initial comparison variation used was the mole ratio of [Ti8O12(H2O)24]8.Cl8.HCl.7H2O  : AgNO3 of 1: 9, 1:10, 1:11, 1:12, and 1:13. Each of these materials was dissolved in ethanol to 37.5 ml. All samples were produced from evaporation of filtrate free from AgCl precipitate, until the volume obtained half of the initial volume. The solid samples were characterized using X-Ray Diffractometer (XRD), Scanning Electron Microscopy-Electron Dispersive X-Ray Analyzer (SEM-EDAX), and UV-Vis spectrophotometer Diffuse Reflectance.The results showed that all samples of TiO2@AgCl consisted of 1 phase of TiO2-nanoparticles and 3 phases of rutile, anatase and AgCl crystals. The morphology of TiO2@AgCl is microspheric with a size ranging from 0.5-1 μm. Based on the results of the analysis with the UV-Vis spectrophotometer Diffuse Reflectance showed that all samples of TiO2@AgCl absorb ultraviolet (UV) rays with bandgap (Eg) ranging from 2.87 to 3.89 eV, and the visible light with Eg ranges from 1.60 to 2.40 eV.
A PRELIMINARY STUDY ON MACRO-MOTH DIVERSITY AT THE BASE OF FOJA MOUNTAIN NATURE RESERVE: KWERBA VILLAGE, MEMBRAMO RAYA, PAPUA Hari Sutrisno
ZOO INDONESIA Vol 21, No 1 (2012): Juli 2012
Publisher : Masyarakat Zoologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52508/zi.v21i1.2350

Abstract

  Kajian awal ngengat berukuran besar telah dilakukan di desa Kwerba, Kaki Pegunungan Foja, Membramo Raya tanggal 1 sd. 29 November 2008 (10 malam). Tujuan dari kajian ini adalah untuk mengumpulkan informasi tentang keragaman ngengat dan juga untuk mengetahui komposisi jenis ngengat di kawasan ini. Hasil penelitian menunjukan bahwa dalam waktu yang singkat hanya diperoleh sekitar 83% dari total yang ada atau sekitar 178 dari total perkiraan 214 jenis. Indeks diversitas Fisher’s ? relatif rendah yaitu 83,17. Demikian juga jumlah famili yang ditemukan di kawasan ini juga rendah hanya 19 famili atau sekitar 1/3 dari total famili yang ada di Indo-Malaya. Secara umum, Pyralidae, Geometridae, dan Noctuidae mendominasi kawasan tersebut. Rendahnya diversitas di kawasan ini berhubungan dengan jenis tanaman yang ada. Pembukaan lahan dan pembalakan liar telah menyebabkan turunnya jumlah jenis pohon tetapi di sisi yang lain kerapatan tumbuhan muda dan jumlah tumbuhhan merambat meningkat. Hanya terdapat sekitar 300 species tumbuhan dikawasan ini. Tentu saja kalau menuju ketinggian yang lebih tinggi dari kawasan kaki gunung ini kemungkinan jenisnya tumbuhan akan lebih banyak karena lebih jauh dari jangkauan penduduk. Sehingga diversitas ngengat di kawasan ini belum dapat digunakan untuk menyimpulkan keragaman ngengat di Pegunungan Foja. Kajian yang lebih intensif yang meliputi seluruh lokasi pegunungan dari dataran rendah sampai puncak masih perlu dilakukan. 
PENGARUH PEMBELAJARAN PEMECAHAN MASALAH BERBASIS REPRESENTASI MULTIPEL PADA MATERI KESETIMBANGAN KIMIA TERHADAP EFIKASI DIRI SISWA Maria Tensiana Tima; Hari Sutrisno
Jurnal Pendidikan Kimia Indonesia Vol. 4 No. 2 (2020)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpk.v4i2.21896

Abstract

Tingkat keberhasilan siswa dalam mempelajari kimia selain dipengaruhi oleh kemampuan penguasaan konsep dan kemampuan pemecahan masalah, ada faktor lain yang dapat mempengaruhi yaitu faktor psikologis siswa seperti afiksasi diri. Tujuan penelitian ini adalah untuk mengkaji afiksasi diri siswa pada penerapan model pembelajaran pemecahan masalah berbasis representasi multipel dengan model pembelajaran pemecahan masalah pada materi kesetimbangan kimia. Penelitian ini merupakan penelitian kuasi eksperimen dengan Posttest Only Design. Sampel dalam penelitian ini adalah dua kelas siswa kelas XI MIPA pada salah satu SMA yang diambil menggunakan teknik Purposive sampling. Kelas eksperimen (26 siswa) diajarkan dengan model pembelajaran pemecahan masalah berbasis representasi multipel sedangkan kelas kontrol (24 siswa) diajarkan dengan model pembelajaran pemecahan masalah. Instrumen yang digunakan untuk memperoleh data dalam penelitian ini adalah instrumen angket. Data yang diperoleh, kemudian dianalisis dengan menggunakan uji statistik parametric. Berdasarkan hasil uji Independent t-test diperoleh nilai signifikansi sebesar 0,002 < 0,05. Sehingga dapat disimpulkan bahwa terdapat perbedaan afiksasi diri siswa antara penerapan model pembelajaran pemecahan masalah berbasis representasi multipel dengan model pembelajaran pemecahan masalah.ABSTRACTThe level of success of students in studying chemistry is not only influenced by the ability to master concepts and problem-solving abilities, there are other factors that can influence, namely students' psychological factors such as self-efficacy. The aims of this study were to examine students' self-efficacy in the application of multiple representation-based problem-solving learning models with problem-solving learning models on chemical equilibrium material. This research is a quasi-experimental study with Posttest Only Design. The sample in this study were two classes of students of class XI MIPA at a high school who were taken using purposive sampling technique. The experimental class (26 students) was taught with a problem-solving learning model based on multiple representations while the control class (24 students) was taught with a problem-solving learning model. The instrument used to obtain data in this study was a questionnaire instrument. The data obtained were then analyzed using parametric statistical tests. Based on the results of the Independent t-test, it was obtained a significance value of 0.002 < 0.05. So, it can be concluded that there are differences in student self-efficacy between the application of multiple representation-based problem-solving learning models with problem solving learning models.
The Use of The Rasch Model to Develop Students' Conception of Chemistry Learning Instruments During the Covid-19 Pandemic Ifan Rivaldo; Hari Sutrisno; Alusti Cundo Manik
Jurnal Pendidikan Kimia Indonesia Vol. 6 No. 1 (2022)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpk.v6i1.45338

Abstract

Perbedaan konsepsi belajar tergantung pada pengalaman belajar kimia yang dirasakan peserta didik. Perbedaan ini semakin tampak ketika peserta didik harus menjalani pembelajaran jarak jauh dikarenakan pandemi. Untuk mengukur perbedaan tersebut, instrumen konsepsi belajar kimia yang terdiri dari 24 item dengan skala likert dikembangkan dan divalidasi oleh para ahli secara konstruk serta secara empiris dengan menerapkan analisis model Rasch menggunakan software WINSTEPS® (versi 3.73). Tujuan penelitian ini yaitu mengembangkan instrumen konsepsi belajar yang spesifik mengukur konsepsi belajar kimia. Jenis penelitian ini yaitu pengembangan. Populasi penelitian ini sejumlah 247 siswa sekolah menengah atas. Metode yang digunakan untuk mengumpulkan data yaitu survei. Instrument yang digunakan untuk mengumpulkan data yaitu kuesioner. Kualitas psikometrik kuesioner yang dianalisis meliputi reliabilitas, statistik kesesuaian item, penggunaan skala penilaian, dan bias item terhadap gender (Differential Item Functioning (DIF)).  Teknik yang digunakan untuk menganalisis data yaitu analisis deskriptif kualitatif dan kuantitatif.  Hasil penelitian menunjukkan bahwa model Rasch cocok dengan data pengukuran meliputi reliabilitas person dan item (>0,8). Sembilan belas item memenuhi nilai penerimaan untuk statistik kesesuaian item. Selain itu, kategori pada skala berfungsi dengan baik dan bebas dari ketidakteraturan dari nilai Andrich-Threshold. 2 dari 4 item bias gender kemudian dipertahankan dengan merevisi kuesioner. Disimpulkan bahwa instrumen valid dan dapat digunakan untuk mengukur konsepsi belajar kimia.
Co-Authors . DARMAWAN . Ismail . SUPUTA Abukasim, Sudarto Abukasim, Sudarto M. Achmad Saiful Whatoni Ajeng Widya Indriana Al Ansary, Ahmad Luthfi Alita, Alita Alusti Cundo Manik Amirah, Giska Anik Nur Laili Antonia Fransiska Laka Ariswan Ariswan Ariswan, Ariswam Aurelia Revi Pusbelina Balke, Michael Bruno Cancian de Araujo Cahyorini Kusumawardani Chrisoph Hauser CIPTO WALUYO Dahlan, Jafar Das Salirawati de Araujo, Bruno Cancian Desfi Annisa Desfi Annisa Desfi Annisa, Desfi Djunijanti Peggie Djunijanti Peggie, Djunijanti Dwi Anggi Marini Eddy Nurtjahya Eko Wahyu Budi Darmawan Eli Rohaeti Endang Dwi Siswani Endang Dwi Siswani Endang Widjajanti Laksono FX Fajar Naqsyahbandi Hagus Tarno Hari Purnomo Hauser, Chrisoph I WAYAN SUANA Ifan Rivaldo Iman hidayat Insani Efrili Yanti Isnaya Khamida Zulfah Jajang Muhariyansah Kristian Handoyo Sugiyarto Kristina von Rintelen Kun Sri Budiasih Lutfi Afifah, Lutfi Luthfiah, Siska M.Sulthon Nur Harman Syah Putra Maesaroh Maesaroh Maesaroh Maesaroh Maesaroh Maesaroh Maria Tensiana Tima Michael Balke Muhamad Rom Ali Fikri Mursyidin, Abdul Halim Narakusumo, Raden Pramesa Nasihah, Durrotun Nensi Ulfatun Khasanan NUNUK WIDYASTUTI Nur Kholifah, Dwi Pravita Saktiyani Purwaningsih , Dyah Puspitasari, Adinda Putri Putri Chrisberta, Maria Luisella Anadya Raden Pramesa Narakusumo Rais Assad Faiz Ramadhan, Muhammad Hafizh Ratna Novita Sari Retno Arianingrum Rizqiyah, Fatihatur ROSICHON UBAIDILLAH Sandra Desfa Jayanti Satriyo Restu Adhi Schmidt, Stefan Setiawan, Muhamad Reza SISWO POLANDONO Sri Novita Yanda Stefan Schmidt Suasti Ayu Triwijiastuti Sudarsono Suharto . Suharto Suharto Sunarto Sunarto Sunarto Sunarto Susila Kristianingrum Thomas von Rintelen Toto Himawan Vina Ayu Mu&#039;izayanti von Rintelen, Kristina von Rintelen, Thomas wan zahara zaitu hania Wipsar Sunu Brams Dwandaru Wisanggeni Bayu Aji Yanda, Sri Novita