scholarly journals PENGARUH MEDAN MAGNET EXTREMELY LOW FREQUENCY (ELF) TERHADAP NILAI pH BUAH ANGGUR HITAM

2021 ◽  
Vol 7 (1) ◽  
pp. 155
Author(s):  
Enik Wasiah Niati ◽  
Sudarti Sudarti ◽  
Yushardi Yushardi
Keyword(s):  
Magnetic Field ◽  
Data Analysis ◽  
Ph Value ◽  
Control Group ◽  
Research Subjects ◽  
Control Group Design ◽  
Group Design ◽  
Post Test ◽  
Experimental Group ◽  
Elf Magnetic Field

ABSTRAKMedan magnet ELF merupakan gelombang elektromagnetik dengan frekuensi sampai 300 Hz dan tergolong sebagai radiasi non ionizing. Penelitian ini menggunakan desain randomized subject post-test only control group design, dengan pembagian dua kelompok subjek penelitian dipilih secara acak. Penelitian ini bertujuan untuk mengetahui pengaruh paparan medan magnet ELF .terhadap nilai pH buah anggur hitam. Dalam penelitian ini ada dua kelompok yaitu kelompok kontrol dan eksperimen, dimana kelompok eksperimen diberi perlakuan medan magnet  ELF intensitas 300μT dan 500μT selama 60’ dan 120’ untuk masing-masing intensitas. Analisa data nilai pH buah anggur menggunakan SPSS 24 yaitu uji kruskal wallis. Berdasarkan hasil analisa data didapat bahwa medan magnet ELF intensitas 300μT dan 500μT  berpengaruh terhadap nilai pH buah anggur hitam. Nilai pH kelompok kontrol lebih tinggi dari kelompok eksperimen. Hal ini disebabkan karena intensitas di bawah 500μT menekan pertumbuhan mikroorganisme pembentuk asam didalam buah angggur hitam. Kata kunci: medan magnet ELF; analisa data; pH. ABSTRACTThe ELF magnetic field is an electromagnetic wave with a frequency of up to 300 Hz and is classified as non-ionizing radiation. This study used a randomized subject post-test only control group design, with the division of two groups of research subjects randomly selected. This study aims to determine the effect of exposure to ELF magnetic fields on the pH value of black grapes. In this study, there were two groups, namely the control and experimental groups, where the experimental group was treated with an ELF magnetic field with an intensity of 300μT and 500μT for 60 'and 120' for each intensity. The data analysis of the pH value of grapes used SPSS 24, namely the kruskal wallis test. Based on the results of data analysis, it was found that the ELF magnetic field with the intensity of 300μT and 500μT had an effect on the pH value of black grapes. The pH value of the control group was higher than the experimental group. This is because the intensity below 500μT suppresses the growth of acid-forming microorganisms in the black grapefruit. Keywords: ELF magnetic field; data analysis; pH.

scholarly journals Metode Sosiodrama untuk Meningkatkan Kemampuan Bahasa Arab Siswa Madrasah Aliyah

2019 ◽  
Vol 5 (2) ◽  
pp. 251-272
Author(s):  
Ahmad Ismail
Keyword(s):  
Learning Outcomes ◽  
T Test ◽  
Control Group ◽  
Research Subjects ◽  
Control Group Design ◽  
Homogeneous Groups ◽  
Group Design ◽  
Significant Difference ◽  
Post Test ◽  
Experimental Group

Abstract The purpose of this article is to find out the differences in student learning outcomes using the sociodrama method and how much increase in al-kalam maharah in students who apply the sociodrama method in learning Arabic which has several maharah as their basic competencies. This research is an experimental research, where the research subjects are students of Senior High School. Of the population at the school studied two homogeneous groups were taken as samples, namely Class XI of Religion 1 as an experimental class and Class XI of Religion II as a control group. This research uses Randomized Pretest-Posttest Control Group Design as its research design. The research results in this article are based on the results of statistical analysis which shows that the Posttest T-test between the control group and the experimental group obtained the value of T-count = -4.503 <T-table = 2.037 (Ha accepted) which means there is a significant difference in learning outcomes between the control group with experimental group. Whereas the T-test of the pretest and post-test of the experimental group resulted in the value of T-count = 13,348 <T-table = 2,035 (Ha accepted), which means that there was a significant increase in the learning outcomes of the experimental group students. Keywords: Strategy, Sociodrama, Maharah Al-Kalām   Abstrak Tujuan dari artikel ini adalah untuk mengetahui perbedaan hasil belajar siswa yang menggunakan metode sosiodrama dan seberapa besar peningkatan maharah al-kalam pada siswa yang menerapkan metode sosiodrama dalam pembelajaran bahasa Arab yang mempunyai beberapa maharah sebagai kompetensi dasarnya. Penelitian ini merupakan penelitian eksperimen, dimana subjek penelitiannya adalah siswa Madrasah Aliyah. Dari populasi di sekolah yang diteliti diambil dua kelompok homogen sebagai sampelnya, yaitu kelas XI Agama 1 sebagai kelas eksperimen dan kelas XI Agama II sebagai kelompok kontrol. Penelitian ini menggunakan Randomized Pretest- Posttest Control Group Design sebagai desain penelitiannya. Hasil penelitian dalam artikel ini didasarkan pada hasil analisis statistik yang menunjukkan bahwa uji T- Posttest antara kelompok kontrol dan eksperimen didapatkan nilai T-hitung = -4,503 < T-tabel = 2,037 (Ha diterima) yang artinya terdapat perbedaan yang signifikan hasil belajar antara kelompok kontrol dengan kelompok eksperimen. Sedangkan uji-T nilai pretest dan posttest kelompok eksperimen menghasilkan nilai T-hitung = 13,348 < T-tabel = 2,035 (Ha diterima), yang artinya terdapat peningkatan yang signifikan pada hasil belajar siswa kelompok eksperimen. Kata Kunci: Strategi, Sosiodrama, Maharah Al-Kalām

scholarly journals PELATIHAN PUKULAN BAYANGAN LEBIH BAIK DARI PADA PUKULAN BIASA DALAM MENINGKATKAN VO2MAX DAN DAYA TAHAN OTOT LENGAN PADA ATLET TINJU AMATIR KABUPATEN LOMBOK TENGAH (NTB)

2019 ◽  
Author(s):  
Khaerul Anam ◽  
I P G Adiatmika ◽  
I Putu Adiartha Griadhi ◽  
I Made Muliarta ◽  
Luh Putu Ratna Sundari ◽  
...  
Keyword(s):  
Treatment Group ◽  
Anaerobic Capacity ◽  
T Test ◽  
Control Group ◽  
Research Subjects ◽  
Control Group Design ◽  
Group Design ◽  
Post Test ◽  
Arm Muscles ◽  
Test Control

Boxing is the basic gesture for all martial arts, because all of them definitely use the shadow shot and common shot. These two types of shots are related each other because anaerobic capacity must go along with aerobic capacity.To attain the proper knowledge about the method of shadow shot and common shot in increasing VO2max for the endurance of arm muscles for boxer athletes in Central Lombok Regency. Research was experimental with pre-test and post-test control group design, this research wasconducted in Pertina Lombok Tengah Regency. The research subjects involved 15 people divided into two groups, 7 and 8 samples respectively. The control group given only shadow shot while treatment group given common shot. This training held 3 times a week in six weeks for both groups. The analyses data with independent t-test. Researcher found The endurance of arm muscles (p<0,05) that training in twu group his’not significant to VO2max (p>0,05).Keywords: Shadow blows, regular blows, Boxing, VO2max and Endurance of arm Muscl

scholarly journals Pembelajaran Gerak Dasar Shooting Melalui Penerapan Model Jigsaw Berbasis Media Animasi

2018 ◽  
Vol 1 (2) ◽  
pp. 53
Author(s):  
Silvy Juditya ◽  
Riska Noor Aprila
Keyword(s):  
Physical Education ◽  
Learning Process ◽  
Random Sampling ◽  
Research Method ◽  
Simple Random Sampling ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Post Test ◽  
Experimental Group

Penelitian ini bertujuan untuk mengetahui adakah perbedaan hasil belajar peserta didik pada keterampilan gerak shooting dalam permainan sepakbola pada mata pelajaran pendidikan jasmani olahraga dan kesehatan setelah diajar menggunakan penerapan model  Jigsaw berbasis animasi  jika dibandingkan dengan model jigsaw tanpa berbasis animasi di SMA negeri 1 Margaasih Kabupaten Bandung. Metode penelitian yang digunakan adalah metode penelitian eksperimen, dengan desain One Control Group Design. Populasi penelitian adalah seluruh siswa kelas XI IPS dan sampel XI IPS 2 yang berjumlah 40 siswa dibagi dua yaitu kelompok  kontrol (20 siswa) dan siswa kelompok ekperimen (20 siswa). Pembelajaran di kelompok eksperimen menggunakan model jigsaw berbasis animasi, sedangkan dalam kegiatan pembelajaran kelas kontrol menggunakan model jigsaw tanpa berbasis animasi. Pengambilan sampel menggunakan teknik simple random sampling. Data diperoleh dari hasil tes yang diberikan kepada siswa berupa tes keterampilan gerak dasar shooting pretest yang diberikan sebelum proses pembelajaran dan posttest yang diberikan diakhir proses pembelajaran. Terbukti dari hasil pembelajaran pada kelompok kontrol dengan rata – rata skor pre test 26,45, post test 27,2,  Hasil pembelajaran pada kelompok eksperimen yang diperoleh  skor rata-rata pre test  25,85, post test 33,35. Jadi terdapat perbedaan antara penerapan model jigsaw berbasis animasi  terhadap keterampilan gerak dasar shooting dalam permainan sepak bola mata pelajaran pendidikan jasmani kesehatan dan olahraga di SMA Negeri 1 Margaasih. AbstractThis study aims to determine whether there are differences in student learning outcomes on shooting skills in soccer games on physical education subjects sports and health after being taught using the application of animated Jigsaw-based models when compared with the jigsaw model without animated based in SMA Negeri 1 Margaasih Bandung regency. The research method used is experimental research method, with the design of One Control Group Design. The study population was all students of class XI IPS and sample XI IPS 2 which amounted to 40 students divided by two ie control group (20 students) and students of experimental group (20 students). The learning in the experimental group used animated jigsaw model, whereas in the control class learning activity using jigsaw model without animation based. Sampling used simple random sampling technique. Data obtained from test results given to students in the form of basic shooting pretest motion skills test given prior to the learning process and posttest provided at the end of the learning process. Evident from result of learning in control group with mean of pre test score 26,45, post test 27,2, result of study in experiment group obtained pretest average score 25,85, post test 33,35. So there is a difference between the application of animated jigsaw-based models to basic shooting motion skills in soccer education and physical education in SMA Negeri 1 Margaasih. 

scholarly journals Pengaruh Brain Gym terhadap Konsentrasi Belajar Siswa Kelas IX IPA dalam Pembelajaran Matematika di SMA XYZ Tangerang [The Effects of Brain Gym in Helping Students' Concentration in Learning Math in Grade XI Science at XYZ Senior High School Tangerang]

2018 ◽  
Vol 14 (1) ◽  
pp. 39
Author(s):  
Tica Chyquitita ◽  
Yonathan Winardi ◽  
Dylmoon Hidayat
Keyword(s):  
Control Group ◽  
Control Group Design ◽  
Brain Gym ◽  
Group Design ◽  
Alpha Level ◽  
Post Test ◽  
Quasi Experimental ◽  
The Brain ◽  
Experimental Group ◽  
Bahasa Indonesia

<p><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">Math is considered to be one of the subjects that make it difficult for students to concentrate during the learning process because their brains become tired and tense. </span><span style="vertical-align: inherit;">One of the most popular and trusted ways to improve learning is by using a 'gym gym' approach. </span><span style="vertical-align: inherit;">Therefore, the researchers wanted to see whether the 'gym gym' approach could improve learning concentration. </span><span style="vertical-align: inherit;">The research used a quasi-experimental post-test only control group design. </span><span style="vertical-align: inherit;">The population was the students of class XI Science Basic General Math A and B, while the sample was 15 students from XI Science B as the experimental group. </span><span style="vertical-align: inherit;">Using the Mann-Whitney U-test with an alpha level of 0.05 indicated the asymptote Sig of 0.001 &lt;0.05. This means that the concentration of learning in the experimental group was lower than that of the control group so it is concluded that the ‘brain gym’ approach did not significantly affect students’ concentration</span></span></p><p><strong><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">BAHASA INDONESIA ABSTRAK: </span></span></strong><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">Matematika menjadi salah satu pelajaran sulit yang menyebabkan siswa susah untuk berkonsentrasi selama belajar karena otak menjadi lelah dan tegang. Salah satu cara yang populer dan dipercaya dapat meningkatkan konsentrasi belajar adalah brain gym. Sehingga peneliti ingin melihat apakah terdapat  pengaruh brain gym terhadap konsentrasi belajar siswa. Penelitian ini menggunakan kuasi eksperimen desain post-test only control group. Populasi penelitian ini adalah kelas XI IPA A dan B dengan sampel 15 siswa dari kelas XI IPA B sebagai kelompok kontrol dan 15 siswa dari kelas XI IPA A sebagai kelompok eksperimen. Dengan menggunakan Mann-Whitney U-test dengan tingkat alfa 0,05 menunjukkan asymp. Sig sebesar 0,001&lt;0,05. Hal ini berarti konsentrasi belajar pada kelompok eksperimen lebih rendah dari pada kelompok kontrol sehingga disimpulkan bahwa brain gym tidak berpengaruh terhadap konsentrasi belajar siswa.</span></span></p>

scholarly journals IMPLEMENTATION OF QUANTUM PHYSICS INTRODUCTION AID ON VIRTUAL LABORATORIES TO IMPROVE PROFICIENCY GENERIC

2018 ◽  
Vol 2 (2) ◽  
pp. 382-394
Author(s):  
Sondang R Manurung ◽  
Mara Bangun Harahap ◽  
Nuryani Y Rustaman ◽  
Benny Suprapto Brotosiswoyo
Keyword(s):  
Physics Education ◽  
Quantum Physics ◽  
Virtual Laboratory ◽  
Control Group ◽  
Training Institution ◽  
Research Subjects ◽  
Control Group Design ◽  
Group Design ◽  
Virtual Laboratories ◽  
Experimental Group

This study was aimed at determining the results of virtual laboratory implementation in the introduction of quantum physics in improving the generic proficiency of prospective teacher students. The research method used was quasi-experimental with pretest-posttest control group design. This design uses the determination of equivalent subjects between the experimental group and purposive control. This learning module consists of 2 types, namely computer program aided module that display the visualization of quantum physics symptoms and conventional learning modules. This study was carried out on a teacher training institution in Bandung, West Java. The research subjects were the sixth semester students of Physics Education in the Subject of Quantum Physics, year 2014/2015. The sample in the experimental group consisted of 15 students, while the control group consisted of 24 students. The experimental group students received the learning of quantum physics with a virtual laboratory, while the control group received conventional learning. The result shows that the use of virtual laboratories in the introduction of quantum physics is able to improve the generic skills of students.IMPLEMENTASI LABORATORIUM VIRTUAL DALAM PEMBELAJARAN PENDAHULUAN FISIKA KUANTUM UNTUK MENINGKATKAN KEMAHIRAN GENERIKAbstrakPenelitian ini bertujuan untuk mengetahui hasil implementasi laboratorium virtua dalam pembelajaran Pendahuluan Fisika kuantum dalam meningkatkan kemahiran generik mahasiswa calon guru. Metode penelitian adalah eksperimen semu dengan pretest-posttest Control Group Design. Desain ini menggunakan penetapan subjek setara antara kelompok eksperimen dan kontrol secara purposif. Modul pembelajaran ini terdiri dari 2 jenis yakni modul yang mempergunakan program komputer yang menampilkan visualisasi gejala fisika kuantum dan modul pembelajaran konvensional. Penelitian ini dilaksanakan di LPTK di Kota Bandung Jawa Barat dengan subjek penelitian mahasiswa Semester VI Jurusan Pendidikan Fisika pada Mata Kuliah Fisika Kuantum Tahun Akademik 2014/2015. Sampel penelitian dalam kelompok eksperimen terdiri dari 15 orang mahasiswa. Kelompok kontrol terdiri dari 24 orang mahasiswa. Mahasiswa kelompok eksperimen menerima pembelajaran fisika kuantum dengan laboratorium virtual. Kelompok kontrol menerima pembelajaran konvensional. Hasil penelitian menunjukkan bahwa penggunaan laboratorium virtual dalam pembelajaran pendahuluan fisika kuantum dapat meningkatkan kemahiran generik mahasiswa. 

The Effect of a Suggested Program Based on Interactional Metadiscourse Markers on Developing EFL Majors’ Reading Comprehension and the Reader-friendliness of Their Writing

2016 ◽  
Vol 7 (2) ◽  
pp. 273 ◽  
Author(s):  
Osama Hassanein Sayed Hassanein
Keyword(s):  
Reading Comprehension ◽  
College Of Education ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Writing Test ◽  
Explicit Teaching ◽  
Post Test ◽  
And Control ◽  
Experimental Group

This study attempted to investigate the effect of using a suggested program of interactional metadiscourse markers on EFL majors’ reading comprehension and on their reader-friendly writing. The study used a pre-test/post-test experimental and control group design. An experimental group and a control group were exposed to pre-post means of getting data (a pre-post reading comprehension test and pre-post writing test). Thirty four EFL majors at the College of Education and Arts, Northern Borders University, participated in this study. A 10-week program of interactional metadiscourse markers was developed and given to experimental group students. Results revealed a significant improvement in the reading comprehension of the experimental group students and in their reader-friendly writing. Based on these findings, it was recommended that explicit teaching of metadiscourse markers should be integrated into EFL majors’ curricula.

scholarly journals Describe and Draw Game Towards Students’ Speaking Competence

2019 ◽  
Vol 5 (1) ◽  
pp. 27
Author(s):  
I Made Permadi Utama
Keyword(s):  
Second Grade ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Second Grade Students ◽  
Post Test ◽  
Quasi Experimental ◽  
Equivalent Control ◽  
And Control ◽  
Experimental Group

The aim of this study is to find the effect of Describe and Draw game towards students’ speaking competence at SMAN 2 Gerung. This study used a quasi-experimental with post-test only non-equivalent control group design. The population of this study was second-grade students of SMAN 2 Gerung. The writer took two classes chosen as experimental group and control group. Experimental group was treated by using Describe and Draw game and control group was treated by using Word Match game. Based on the result of the study, it was found that Describe and Draw Game has a significant effect towards students’ speaking competence at SMAN 2 Gerung.

scholarly journals PENGARUH MODEL PEMBELAJARAN QUANTUM TEACHING TIPE TANDUR TERHADAP KEMAMPUAN BERPIKIR KREATIF SISWA

2015 ◽  
Vol 3 (2) ◽  
pp. 282
Author(s):  
Ikasmayanti Ikasmayanti ◽  
Sukainil Ahzan ◽  
Wirawan Putrayadi
Keyword(s):  
Data Analysis ◽  
Creative Thinking ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Thinking Ability ◽  
Post Test ◽  
Class Viii ◽  
Creative Thinking Ability ◽  
Essay Test

This purpose of this reseach was to measure the effect of Quantum Teaching model of TANDUR toward creative thinking ability of student. This research was conducted in the class VIII SMPN 3 Madapangga. The population of this study was all students grade VIII, and got two class as sample were VIIIa and VIIIb. Students at VIIIa as experimental and VIIIb as control class. This research was experimental reseach with post test only control group design. This study using purposive sampling. The instrument in this research was test of creative thinking was formed essay test. Data analysis in this study using t-test. From the treatment was obtaimed creative thinking ability with tcalc = 1,71 ≥ ttab = 1,68. This the null Hypotesis (Ho) in push away and alternative Hypotesis (Ha) in acceptance. From data analysis can concluded that Quantum Teaching type TANDUR can increase the creative thinking ability of students at vibration items and wave.

scholarly journals Mobile-Assisted Task-Based Language Learning, Writing Competency, And Motivation

2020 ◽  
Vol 9 (1) ◽  
pp. 119
Author(s):  
Adelina Kartika Dewi ◽  
Ni Made Ratminingsih ◽  
Made Hery Santosa
Keyword(s):  
Language Learning ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Writing Motivation ◽  
Writing Competency ◽  
Post Test ◽  
Quasi Experimental ◽  
Experimental Group ◽  
One Way Anova

This quasi-experimental study aimed at investigating the effect of mobile-assisted task-based learning on students’ writing competency and students’ motivation in writing. Post-test only control group design was employed in this study. The experimental group was taught by mobile-assisted task-based learning while the control group was taught by non mobile-assisted task-based learning. A writing post-test and questionnaire were used to obtain the data and were analyzed using one-way ANOVA and MANOVA. The findings of the study revealed that (1) there was a significant effect of Mobile-assisted Task-based Learning on the students’ writing competency; (2) there was a significant effect of Mobile-assisted Task-based Learning on the students’ writing motivation; and (3) there was a simultaneous effect of Mobile-assisted Task-based Learning on the students’ writing competency and students’ motivation in writing. This study concluded that the use of mobile devices as a medium in the learning process is effective to enhance the students’ writing competency and increase students’ motivation in writing.

scholarly journals Struggles to Improve Students' Entrepreneurship Interest Through GEPPRAK Learning Model

2020 ◽  
Vol 15 (1) ◽  
pp. 87-98
Author(s):  
Irmawati Irmawati ◽  
Wiedy Murtini ◽  
Lukman Hakim
Keyword(s):  
Learning Model ◽  
T Test ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Group Data ◽  
Post Test ◽  
The Difference ◽  
Difference Test ◽  
Experimental Group

This study aims to investigate the implementation of "GEPPRAK” learning model to increase the class XII students’ interest in entrepreneurship in SMA Negeri 2 Surakarta. The design used in this study is true experimental design using pretest - posttest control group design. The experimental group and the control group were given the pretest. Then the experimental group was given the treatment. After that, a posttest was carried out on the experimental group and the control group. Data was collected by documentation, observation and questionnaire described according to the findings. Data analysis techniques in this study used an independent sample t-test. The results of this study were indicated a significant increase in students’ interest in entrepreneurship in the experimental class given treatment using the GEPPRAK learning model. This is evidenced by testing used the t-test and obtained the significance of the average difference test post-test Sig (2-tailed) 0.017 <α (= 0.05) and t arithmetic (2.426)> t table (1.980). Therefore, the decision test H0 rejected means that there are differences in the average scores post-test of students in the experimental class and the control class. The difference in the average scores post-test of students explains that treatment in the experimental class can increase students’ entrepreneurial interest.

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