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ULFAH ERMAWATI, FRIDA
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Education Physics

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THE IMPLEMENTATION OF PERFORMANCE ASSESSMENT IN SUB MATERIAL STRING WAVE REFLECTION USING GUIDED INQUIRY LEARNING MODEL TO TRAIN SCIENCE PROCESS SKILLS , NURITA; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 7, No 2 (2018)
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This research reported the work on the implementation of performance assessment (PS) in sub material string wave reflection in senior high school using guided inquiry learning model. The aims were to train student?s science process skills and to collect the student?s response on the learning activities. The examined science process skills are as follows: how the students to formulate an experimental question, to determine the experimental goal, to formulate hypotheses, to determine the experimental variables, to administrate the data and analyzing it and to draw conclusion. The research was designed to be one group pre-test post-test. The teaching learning materials were validated before being used. The student?s activities on the class and their science process skills were recorded by video before being evaluated. The research data were analyzed by learning device analysis, implementation learning analysis, pre-test and post-test analysis, interview analysis and student response analysis. The change of students science process skills were analyzed by t-paired test. The results showed that: (1) the students?s science process skills improved. For the example, the students can formulate that experiment questions. (2) The question of ?what the difference between the reflected string wave at the tight and the loose strings??, (3) the students responses to the learning activities were also very good. The students felt happy, they were more active, more motivated to learn, braver to express their opinions and they felt that their science process skills were trained. Keywords: Performance Assessment, Guided Inquiry Learning Model, Science Process Skills, String Wave Reflection.
TRIGONOMETRY HAND TRICK SEBAGAI METODE DALAM PENGAJARAN FISIKA: STUDI KASUS MATERI VEKTOR TABAHYATI, SITI; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 7, No 2 (2018)
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Peserta Didik (PD) sering kali merasa kesulitan untuk mengkaitkan antara konsep Fisika dengan konsep Matematika. Akan menjadi kendala apabila konsep Matematika yang menjadi ilmu prasyarat untuk memahami konsep Fisika belum diajarkan oleh Guru di sekolah. Sebagai contoh adalah materi Trigonometri (Matematika) yang baru diajarkan pada kelas X semester Genap di saat materi Vektor (Fisika) sudah harus diajarkan pada kelas X semester Ganjil. Ini menunjukkan memang selama ini ada masalah bagi PD untuk memahami materi Vektor. Penelitian ini dimaksudkan untuk mengatasi masalah tersebut dengan menggunakan metode Trigonometry Hand Trick (THT) untuk mengajarkan materi Trigonometri. Tujuannya adalah untuk mengajarkan materi proyeksi Vektor dengan cara yang mudah dan menyenangkan, PD dapat dengan mudah menentukan nilai sin ?, cos ?, dan tan ? untuk ? sudut-sudut istimewa Trigonometri sehingga keterampilan softskill PD menjadi terlatih dan hasil belajarnya meningkat. Jenis penelitian ini pre experimental dengan desain one group pre-test and post-test. Kelas X MIPA 4 sampai MIPA 6 di SMA Negeri 1 Krembung dipilih sebagai sampel uji. Hasil observasi dari 2 orang pengamat menunjukkan bahwa kegiatan belajar mengajar telah terlaksana dengan sangat baik yaitu 93,17 % untuk kelas X MIPA 4, 92,93 % MIPA 5, dan 89,51 % MIPA 6. Dengan THT, PD dapat menentukan nilai sinus, cosinus, dan tangen sudut-sudut ? dengan mudah dan menyenangkan. Hasil belajar juga meningkat yang ditandai dengan hasil uji n-gain sebesar 0,71 untuk kelas X MIPA 4, 0,78 MIPA 5, dan 0,85 MIPA 6. Semua PD juga merespon dengan positif terhadap penggunaan metode THT ini. Kata Kunci: Trigonometry Hand Trick, keterampilan softskill, Vektor, Trigonometri.
VALIDITAS INSTRUMEN FOUR-TIER MISCONCEPTION DIAGNOSTIC TEST UNTUK MATERI FLUIDA STATIS ISFARA, LAILA; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 7, No 3 (2018)
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Abstrak Miskonsepsi merupakan masalah yang harus dicegah dan diatasi sebab dapat mengganggu proses belajar siswa. Salah satu contoh miskonsepsi yang ditemukan oleh Peneliti adalah miskonsepsi pada materi Fluida Statis. Miskonsepsi ini dapat dideteksi dengan menggunakan instrumen four-tier misconception diagnostic test (FTMDT). Salah satu syarat kelayakan instrumen tes adalah validitas. Penelitian ini bertujuan untuk menentukan kelayakan produk instrumen FTMDT ditinjau dari aspek validitas khususnya validitas internal yang terdiri dari ranah isi, konstruk dan bahasa dan validitas eksternal yang meliputi validitas empiris isi dan validitas empiris konstruk (per butir soal). Validitas internal diperoleh melalui metode penilaian validasi oleh dosen ahli sedangkan validitas eksternal diperoleh melalui metode uji coba produk FTMDT. Pada penelitian ini, validitas internal ditentukan menggunakan persentase validitas sedangkan validitas eksternal ditentukan berdasarkan persentase jumlah False Positives (kombinasi jawaban benar, tingkat keyakinan tinggi, alasan salah, tingkat keyakinan tinggi) dan False Negatives (kombinasi jawaban salah, tingkat keyakinan tinggi, alasan benar, tingkat keyakinan tinggi) dan menggunakan persamaan korelasi Product Moment. Diperoleh hasil bahwa instrumen yang dikembangkan memiliki validitas internal untuk ranah isi, konstruk dan bahasa berturut-turut sebesar 88 %, 90 % dan 96 %. Validitas empiris isi terpenuhi dengan masing-masing nilai False Positives dan False Negatives adalah sebesar 4,37 % dan 3,19 %. Validitas empiris konstruk untuk tiap butir soal berada pada rentang 0,264 ? rxy ? 0,712. Berdasarkan hasil analisis data yang dilakukan maka produk instrumen tes yang dikembangkan dinyatakan layak untuk digunakan. Kata Kunci: Validitas, Miskonsepsi, Tes Diagnostik Miskonsepsi Berformat Four-tier, Fluida Statis Abstract Misconception is a problem that must be prevented and overcome because it can interfere students learning process. An example of misconception found by researcher is misconception in Static Fluid concepts. This misconception can be detected using a four-tier misconception diagnostic test (FTMDT). A good instrument has to be valid. The aim of this study was to determine the worthiness of the instrument in terms of the validity aspect especially the internal validity which was evaluated from the aspects of content, construct, and the language of the instrument and the external validity which covered the empirical content validity and the empirical construct validity (each item). Internal validity was obtained through validation assessment by expert lecturers while external validity was obtained through the implementation of FTMDT. The internal validity of the instrument was determined from the percentage of the validity for each aspects and the external validity was determined using the percentage of False Positives (combination of the correct answer, high confidence, false reason and high confidence) and False Negatives (combination of the false answer, high confidence, correct reason and high confidence) and Product Moment correlation. The developed instrument has the internal validity of 88 %, 90 % and 96 % each for the content, construct and language aspects. The empirical content validity contained FP and FN values of 4,37 % and 3,19 % respectively. The empirical construct validity of each item is in the range of 0,264 ? rxy ? 0,712. Based on the data above, the developed instrument is worth to be used. Keywords: Validity, Misconception, Four-tier Misconception Diagnostic Test, Static Fluid Concepts
PENGEMBANGAN INSTRUMEN TES DIAGNOSTIK MISKONSEPSI BERFORMAT FOUR-TIER UNTUK MATERI SUHU, KALOR DAN PERPINDAHANNYA INDAH UTARI, JULI; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 7, No 3 (2018)
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Abstrak Dalam kehidupan sehari-hari, seseorang tidak terlepas dari Ilmu Fisika. Sebagai contoh api unggun yang dapat menghangatkan badan siswa di malam hari merupakan hantaran panas secara radiasi. Hangatnya badan karena api unggun pada malam hari merupakan pengetahuan awal yang dimiliki siswa (prakonsepsi). Di sekolah guru mengajarkan konsep-konsep Fisika. Apabila siswa tidak mampu membuat hubungan benar antara prakonsepsi-prakonsepsi yang dimiliki dengan informasi baru yang disampaikan oleh guru maka akan menimbulkan miskonsepsi. Penelitian ini dimaksudkan untuk mengembangkan instrumen four tier misconception diagnostic test (FTDT) pada materi Suhu, Kalor dan Perpindahannya. Tujuannya adalah menentukan kelayakan instrumen FTDT yang dikembangkan ditinjau dari aspek validitas dan reliabilitas, serta mengidentifikasi profil miskonsepsi siswa pada materi Suhu, Kalor dan Perpindahannya. Jenis penelitian ini adalah pengembangan dengan model pengembangan R & D (research and develompment). Siswa kelas XI MIPA 2 sampai XI MIPA 4 SMA Negeri 4 Sidoarjo dipilih sebagai sampel uji coba. Uji coba dilakukan sebanyak 2 kali yakni Uji Coba 1 dan Uji Coba 2. Uji Coba 1 yang dilakukan kepada 70 siswa Kelas XI MIPA 2 dan XI MIPA 3 digunakan untuk menentukan validitas dan reliabilitas produk instrumen FTDT yang dikembangkan. Sedangkan Uji Coba 2 dilakukan kepada 32 (XI MIPA 4) siswa untuk mengidentifikasi miskonsepsi siswa materi Suhu, Kalor dan Perpindahannya. Hasil Uji Coba 1 menunjukkan bahwa instrumen FTDT yang dikembangkan dikategorikan valid dengan persentase siswa menjawab jawabaan benar, alasan salah, serta tingkat keyakinan tinggi (FP) dan siswa menjawab jawaban salah, alasan benar, serta tingkat keyakinan tinggi (FN) masing-masing sebesar 9,82 % dan 9,10 %; validitas empiris konstruk sebesar 0, 8185; reliabilitas instrumen yang diperoleh menggunakan perhitungan Alpha Cronbach adalah sebesar 1,067. Sedangkan untuk hasil Uji Coba 2 menunjukkan bahwa mayoritas siswa mengalami miskonsepsi pada materi Suhu, Kalor dan Perpindahannya. Kata Kunci: four tier test diagnostic, miskonsepsi, Suhu, Kalor dan Perpindahannya Abstract In daily life, everyone can?t be separated from Physics. For example, a bonfire that can warm a students body at night is a radiant heat transfer phenomenon. The warmth of the body due to the campfire at night is the initial knowledge possessed by the students (preconception). At school, the teacher teaches the concepts of physics. If students can?t make the right relationship between the preconceptions with new information conveyed by the teacher, it will lead to misconceptions. This study was intended to develop a four-tier misconception diagnostic test (FTDT) for Temperature and Heat Transfer concepts. The aim was to determine the worthiness of the FTDT instrument in terms of the validity and the reliability aspects and to identify students?s misconception profiles on the Temperature and Heat Transfer concepts. R & D (research and development) model was used in this study. The students of XI MIPA 2, XI MIPA 3 and XI MIPA 4 was chosen as the test sample. The trial of the FTDT instrument was conducted twice, namely Trial 1 and Trial 2. The Trial 1 was conducted to the 70 students of XI MIPA 2 and XI MIPA 3 in order to determine the validity and the reliability of the instrument. Whereas Trial 2 was conducted to 32 (XI MIPA 4) students to identify the student?s misconceptions profiles. The data obtained from Trial 1 shows that the developed instrument is categorized as a valid instrument with the percentage of FP and FN is 9.82 % and 9.10 % respectively; the empirical construct validity is 0, 8185; the instrument reliability that was obtained using Alpha Cronbach correlation is 1.067. Whereas the results of the Trial 2 show that the majority of the XI IPA 4 students experienced misconceptions on the Temperature and Heat Transfer concepts. Keywords : four tier test diagnostic, misconsepcion, temperature and heat transfer
VALIDITAS DAN RELIABILITAS INSTRUMEN TES DIAGNOSTIK MISKONSEPSI BERFORMAT FOUR-TIER PADA MATERI ALAT OPTIK ROHMANASARI, FITRI; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 8, No 2 (2019)
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Abstrak Miskonsepsi merupakan masalah yang paling sering terjadi dalam dunia pendidikan yang harus dideteksi sejak dini agar tidak mempengaruhi konsep berikutnya. Paper ini dimaksudkan untuk melaporkan hasil pengembangan four-tier misconception diagnostic test (FTMDT) pada materi Alat Optik. Tujuan dari Penelitian ini ialah untuk menentukan kelayakan instrumen FTMDT yang ditinjau dari aspek validitas (validitas internal dan eksternal) dan reliabilitas. Jenis penelitian ini menggunakan model pengembangan R & D (research and development). Validitas internal diperoleh dari hasil validasi dua orang Dosen Fisika sedangkan validitas eksternal dan reliabilitas diperoleh dari hasil uji coba kepada 60 orang peserta didik kelas XII SMA Negeri 1 Cerme Gresik. Hasil validitas internal untuk masing-masing ranah yaitu isi, konstruk, dan bahasa sebesar 97 %, 90 %, dan 92 %. Validitas eksternal diperoleh nilai false positives (FP) dan false negatives (FN) sebesar 8 % dan 7 %, nilai persentase yang didapatkan masing-masing kurang dari 10 % sehingga dinyatakan valid secara eksternal. Nilai korelasi pearson product moment (rxy) sebesar 0,600 dan indeks reliabilitas sebesar 0,580, kedua nilai tersebut lebih besar dari rtabel yang artinya instrumen FTMDT yang dikembangkan valid dan reliabel sehingga layak untuk digunakan. Kataikunci: Miskonsepsi, Tes diagnostik four-tier, Materi Alat Optik, Validitas, dan Reliabilitas Abstract Misconception is the most common problem in the world of education that must be detected early so as not to affect the others concept. This paper is intended to report the results of the development of a four-tier misconception diagnostic test (FTMDT) on Optical Instrument material. The purpose of this study was to determine the feasibility of the FTMDT instrument in terms of the aspects of validity (internal and external validity) and reliability. This research uses a research and development model. Internal validity was obtained from the results of the validation of two Physics Lecturers while external validity and reliability were obtained from the results of trials on 60 students of the Sciences Classes, 12th grade in Senior High School 1 Cerme Gresik. The results of internal validity for each domain are content, construct, and language at 97%, 90%, and 92%. External validity is obtained by false positives (FP) and false negatives (FN) values ??of 8% and 7%, the percentage value obtained is less than 10%, so it is declared externally valid. The value of Pearson product moment correlation (rxy) is 0.600 and the reliability index is 0.580, the two values ??are also bigger than rtable, which means that the developed FTMDT instrument is valid and reliable so it is proper to use. Keywords: Misconception, Four-tier diagnostic test, Optical instrument material, Validity, and Reliability
VALIDITAS DAN RELIABILITAS INSTRUMEN TES DIAGNOSTIK BERFORMAT FOUR-TIER UNTUK MATERI DINAMIKA ROTASI DAN KESETIMBAGAN BENDA TEGAR MIFTAKHUL JANNAH, EMITA; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 8, No 2 (2019)
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AbstrakTujuan dilakukan penelitian ini adalah untuk mengembangkan instrumen tes diagnostik empat tingkat (four-tier) untuk materi Dinamika Rotasi dan Kesetimbangan Benda Tegar dan menentukan kelayakan instrumen yang telah dikembangkan tersebut ditinjau dari aspek validitas dan reliabilitas. Jenis penelitian ini adalah pengembangan dengan model R&D (Research and Development). Sampel Uji Coba dalam penelitian ini sebanyak 55 peserta didik yang terdiri dari dua kelas yaitu XI MIPA 2 dan XI MIPA 3. Dari hasil uji coba tersebut diketahui bahwa instrumen yang dikembangkan dinyatakan valid dan reliabel. Aspek validitas terdiri dari validitas internal dan validitas eksternal, dimana untuk validitas internal meliputi validitas isi, konstruk dan bahasa dengan hasil berturut-turut yaitu 97 %, 95 % dan 96 %. Sementara itu validitas eksternal meliputi validitas empiris isi dengan hasil false positive dan false negative sebesar 7,7 % dan 4,9 %, validitas empiris konstruk per butir diperoleh hasil bahwa 16 soal dinyatakan valid dan validitas empiris konstruk keseluruhan diperoleh sebesar 0,608, dimana nilai tersebut lebih besar dari 0,266, sehingga dinyatakan valid. Selanjutnya adalah aspek reliabilitas dengan hasil sebesar 0,646. Nilai lebih besar dari 0,266, sehingga dinyatakan reliabel. Kataikunci: Validitas, reliabilitas, tes diagnostik empat tiangkat (four-tier) Abstract The purpose of this research is to develop a four-level diagnostic test instrument (four-tier) for the chapter of Dynamic Rotation and Rigid Body Equilibrium and determine the worthiness of the instrument in terms of the validity aspect and reliability aspect. This type of research is development with the R & D (Research and Development) model. The test sample in this research is 55 students of two classes is XI MIPA 2 and XI MIPA 3. From the results of the test know that the instruments developed were declared valid and reliable. The aspect of validity consists of internal validity and external validity, which for internal validity includes the validity of content, constructs and language with successive results is 97 %, 95 % and 96 %. Meanwhile, external validity includes empirical validity of contents with results of false positive and false negative is 7.7% and 4.9%, Empirical validity of construct by the item is 16 questions are declared valid and empirical validity of the overall construct is obtained of 0,608, where the value is greater than 0,266, so it was declared valid. Next is the reliability aspect with the result of 0.646. This value is greater than 0.266, so it is declared reliable. Keywords: Validity, reliability, four-level diagnostic test instrument (four-tier)
VALIDITAS DAN RELIABILITAS INSTRUMEN FOUR-TIER DIAGNOSTIC TEST UNTUK MATERI ARUS LISTRIK SEARAH AISAHSARI, RAHAYU; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 8, No 2 (2019)
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Abstrak Miskonsepsi merupakan salah satu masalah yang sering ditemukan dalam proses pembelajaran Fisika. Miskonsepsi ini harus dideteksi sejak dini agar tidak mengganggu peserta didik dalam memahami konsep-konsep berikutnya. Penelitian ini dimaksudkan untuk mengembangkan instrumen four-tier diagnostic test pada materi Arus Listrik Searah. Tujuan penelitian ini adalah untuk menetukan kelayakan instrumen four-tier diagnostic test yang dikembangkan dilihat dari aspek validitas dan reliabilitas. Kelayakan tersebut diperoleh dari hasil validasi yang dilakukan oleh dua orang Dosen Validator dan uji validitas serta reliabilitas terhadap 55 peserta didik Kelas XII MIA 2 dan XII MIA SMA Negeri 1 Ngimbang Lamongan. Hasil uji kelayakan tersebut menunjukkan bahwa persentase validitas internal yang diperoleh sebesar 93 %. Persentase false positives dan false negatives diperoleh kurang dari 10 % yang artinya valid yaitu berturut-turut sebesar 7,9 % dan 7,1 %. Nilai koefisien korelasi pearson product moment (rxy) sebesar 0,655 sedangkan nilai indeks reliabilitas (r11) sebesar 0,685. Kedua nilai tersebut lebih besar dari nilai rtabel 0,266 yang berarti bahwa instrumen yang dikembangkan dinyatakan valid secara eksternal dan reliabel. Dengan demikian dapat disimpulkan bahwa instrumen yang dikembangkan layak untuk digunakan. Kataikunci: Arus Listrik Searah, four-tier diagnostic test, reliabilitas, dan validitas Abstract Misconception is one of the problems often found in the physics learning procsess. This misconception must be detected early so it can not disturb students in understanding the other concepts. This research aims to develop a four-tier diagnostic test instrument on direct current chapter. The feasibility is obtained from the results of validation which conducted by two Validator Lecturers and the validity and reliability test on 55 students of 12th Grade Science Two and Science Four in SMAN 1 Ngimbang Lamongan. The results of the feasibility trial show that the percentage of internal validity obtained is 93%. The percentage of false positives and false negatives is obtained less than 10% which means valid for 7,9% and 7,1% respectively. Pearson product moment correlation coefficient (rxy) is 0.655 while the reliability index value (r11) is 0.685. Both of these values ??are greater than the rtable 0,266 value meaning that the instruments developed are declared valid externally and reliably. Therefore it can be concluded that the instruments developed are proper to use. Keywords: Direct Current, four-tier diagnostic test, validity, and reliability
THE VALIDITY AND RELIABILITY OF FOUR-TIER FORMAT MISCONCEPTION DIAGNOSTIC TEST INSTRUMENT FOR MOMENTUM AND IMPULSE CONCEPTS HANIFAH, LAILATUL; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 8, No 2 (2019)
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Misconception is the main problem that often occurs in physics concepts including in the concepts of Momentum and Impulse. Misconceptions that experienced by students can be identified using a four-tier format of misconception diagnostic test. This study aims, first, to develop a misconception diagnostic test instrument using four-tier format for Momentum and Impulse concepts. Second, to determine the validity and reliability of the developed instrument. Twenty numbers of test items has been developed. The theoretical validity was obtained by asking 3 physics lectures to evaluate the content, the construct and the language of the instrument. While the empirical validity and the reliability of the instrument was examined by 65 students from SMAN 4 Sidoarjo. The result shows that 94,4% of the theoretical validity was achieved. False positives and false negatives was 6,3% and 6,1% indicate that the instrument was empirically valid. The reliability coefficient (rexp) was 0,61 which is bigger the rtable = 0,24, showing that the instrument was reliable.Keywords : Misconception, Momentum dan Impulse, Four-Tier Misconception Diagnostic Test.
THE VALIDITY OF FOUR-TIER’S MISCONCEPTION DIAGNOSTIC TEST FOR DYNAMIC FLUID CONCEPTS MENIK KURNIAWATI, DYAH; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 8, No 2 (2019)
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Physics was considered by students as the most difficult lesson. One of the reasons is that Physics contains many formulas without being followed by a good explanation of the Physics concepts behind the formulas from the teacher. Such situation potentially causes misconceptions to students. This paper reports the work to develop a four-tier misconception diagnostic test instrument in Dynamic Fluid concepts. The aim was to determine the feasibility of the developed instrument in terms of validity and reliability. The instrument?s validation result was obtained after two independent Physics Lecturers evaluated the content of the instrument. The reliability results was gathered from the test trial to 50 numbers of 11 grade students in Science class of senior high school 1 Sidoarjo. The results show that the validity was 92.55 %. The false positive and false negative values were 4.3% and 3.8%, respectively which means that the instrument is valid because the values less than 10 %. The correlation coefficient of Pearson product moment ( ) was 0.591 while the reliability index value ( ) was 0.751. Those values are greater than the rtable of 0.279, which means that the developed instrument is reliable. Keywords: Dynamic fluid concepts, four-tier diagnostic test, validity, reliability
THE VALIDITY AND RELIABILITY OF FIVE-TIER CONCEPTION DIAGNOSTIC TEST FOR KINETIC THEORY OF GASES SAADATUL FAJRIYYAH, NORIYATUS; ULFAH ERMAWATI, FRIDA
Inovasi Pendidikan Fisika Vol 9, No 2 (2020)
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Misconceptions was reported to occur in many concepts in Physics subject in senior high school. One of them is in Kinetic Theory of Gases concepts. For example, students assumed if two balloons with different volumes are connected using a plastic straw, the air will flow from the bigger balloon to the small balloon. This assumption is not in accordance with the Kinetic Theory of Gases concept namely Boyle?s Law, so it is called misconception. The aims of this study is to develop a five-tier conception diagnostic test for Kinetic Theory of Gases and determine the validity and the reliability. The author using two different samples, first, 27 students to collect reasons, second, 35 students to gain validity and reliability score. The validity aspect consists of internal and external validities. The internal validity has done by two Physics lecturers. The external validity consists of content and construct aspect. The external validity of the content was determined based on false positives (FP) and false negatives (FN) values that < 10%, while the construct external validity was determined using the Pearson Product Moment correlation equation. The reliability was calculated using Alfa Cronbach (r_11) with 5% significance level and rtheoritic of 0.334. The internal validity results is 94.33%. The FP and FN values are 8.9 and 7.8% respectively, which means that the developed instrument is valid. The (r_xy) is 0.64, while the reliability value (r_11) is 0.885. Those values are greater than the rtheoritic, which means that the developed instrument is valid and reliable.Keywords: Kinetic theory of gases, five-tier conception diagnostic test, validity, reliability
Co-Authors , NURITA AISAHSARI, RAHAYU AZIZAH IMAMAH, NUR HADZIQUNNUHA AHFA, MUHAMMAD HANIFAH, LAILATUL IKA YULIANTI, DWI INDAH UTARI, JULI IRVAN ARDEANSYAH, DHIMAS ISFARA, LAILA MENIK KURNIAWATI, DYAH MIFTAKHUL JANNAH, EMITA Mugni Muammar, Asep NUR FIRDAUSI, NOVYANTI ROHMANASARI, FITRI SAADATUL FAJRIYYAH, NORIYATUS TABAHYATI, SITI ZAHRO, SAKINATUS