scholarly journals The effect of conceptual change text structure on concept understanding and misconception reduction of dynamic electricity

2018 ◽  
Vol 42 ◽  
pp. 00075 ◽  
Author(s):  
Gde Parie Perdana ◽  
Ketut Suma ◽  
Ni Made Pujani

This study investigated the effect of conceptual change text on student understanding and misconception reduction of dynamic electricity concept. A quasi-experimental research with pre-test/post-test non-equivalent control group design was used. The subjects for this study consisted of 90 tenth-grade students. The three-tier test, the Dynamic Electricity Concept Test (DECT), was developed as pre-test and post-test to access the student conceptions. While the experimental group (n=45) received a conceptual change text, the control group (n=45) received an expository text. MANCOVA analysis was used to know the effect of conceptual change text structure on both dependent variables. The results of the study indicated that the student in the experimental group showed significantly higher understanding and higher misconceptions reduction compared to the students in the control group. Both groups had increased concept understanding and misconceptions reduction, however, the experimental group’s result was better than the control group.

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
D. K. Sari ◽  
A. Permanasari ◽  
F. M. T. Supriyanti

<p>The purpose of this study is to obtain a profile of students’ creative thinking skills on quantitative project-based protein testing using local materials. Implementation of the research is using quasi-experimental method pre-test post-test control group design with 40 students involved in Biochemistry lab. The research instrument is pre-test and post-test using creative thinking skills in the form of description and students’ questionnaire. The analysis was performed with SPSS 22.0 program to see the significance normality, U Mann-Whitney test for nonparametric statistics, N-Gain score, and the percentage of student responses to the practicum performed. The research result shows that the pretest rate in the experimental group is 8.25 while in the control group is 6.90. After attending a project-based practicum with local materials, the experimental group obtained the mean of posttest is 37.55 while in control class is 11.18. The students’ improvement on creative thinking skills can be seen from the average of N-Gain in the experimental class with 0.32 (medium category) and in the control category with 0.05 (low category). The experimental and control class have different creative thinking skills significantly different fluency, flexibility, novelty, and detail. It can be concluded that quantitative project-based protein testing using local materials can improve students’ creative thinking skills. 71% of total students feel that quantitative project-based protein testing using local materials make them more creative in doing a practicum in the laboratory.</p>


Author(s):  
E N Sumarni ◽  
A Widodo ◽  
R Solihat

<p class="Abstract">Drawing – based modeling as learning approach, it allows students to create models based on drawing which help them to run a simulation. Students can use drawing–based modeling to learn a pair of interacting population known as predato–prey system while they usually conducted practicum using diagram of organisms. This study was to explore students’ argumentation and students’ understanding on the concept of the ecosystem. The study was conducted quasi – experimental using the matching – only post-test – only control group design. The participants consist of 60 grade 10 senior high school students in Subang, West Java. They are placed into two groups, 30 students in the experimental group and 30 students in the control group. Data was collected through argumentation test and selected response test for assessing students’ understanding. Students’ argumentation were analyzed using Toulmin’s argumentation pattern and statistical analysis. The result showed there is no significant difference between the experimental group and the control group for students’ argumentation. Most of the students are predominantly at level 2. But the coherency of arguments of the experimental group is more coherent than the control group. It means that the students in experimental group can make logical claim and supported by the correct and relevant grounds (data, warrant, and backing). The result of students’ understanding showed there is a significant mean score between the experimental group and the control group whether 72.33 for the experimental group and 62.13 for the control group</p>


2018 ◽  
Vol 83 (1) ◽  
pp. 121-137 ◽  
Author(s):  
Haluk Özmen ◽  
Akbar Naseriazar

The aim of this research was to investigate the effect of computer simulations enhanced with conceptual change texts (CS-CCT) on first year university students? understanding of chemical equilibrium. A quasi-experimental design and one control group (CG, N = 60) as well as one experimental group (EG, N = 65) were used in the study. While students in CG were taught with traditional methods based on textbooks and blackboard, the EG studied the same unit with CS-CCT. The chemical equilibrium concept test (CECT) was administered as pre-test, post-test and delayed test to collect data. The results indicated that the students? scores in the EG were significantly higher than those in the CG in both post-test and delayed test. It was concluded that CS-CCT may become a more effective way for students to picture in their minds chemical equilibrium and improve their alternative interpretations. Also, such a combination is useful for students to enhance their conceptual understanding.


Author(s):  
Yusran Khery ◽  
Khaeruman Khaeruman

The purpose of this study was to evaluate the effect of context-rich problems in the form of interactive multimedia on chemical students’ science process skills, scientific attitudes, and conceptual understanding in practical activities. This research is the quasi-experimental study with post test only control group design. The research sample consisted of 142 students divided into 3 groups. The 1st experimental group was treated using a context-rich problem in the form of interactive multimedia before practical activities, the 2nd experimental group used conventional rich problems, and control groups without context-rich problems. Data were collected by the science process skills observation sheets and portfolio, scientific attitude observation sheets, and conceptual understanding tests. Data were analyzed by inferential statistical methods using SPSS 15 software for windows. The results showed that the context-rich problems in the form of interactive multimedia had an effect on students' science process skills, scientific attitudes, and conceptual understanding.


2018 ◽  
Vol 14 (1) ◽  
pp. 39
Author(s):  
Tica Chyquitita ◽  
Yonathan Winardi ◽  
Dylmoon Hidayat

<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>


2019 ◽  
Vol 2 (2) ◽  
pp. 108-121
Author(s):  
Syarifah Faradina ◽  
Sarah Sisilya Az Badal ◽  
Meutia Natasya ◽  
Kamilah Kamilah ◽  
Elda Oviyani ◽  
...  

ABSTRAKKecemasan merupakan fenomena psikologis yang umum dirasakan oleh setiap individu. Mahasiswa sebagai penuntut ilmu tidak pernah lepas dari tuntutan tugas dan lingkungan, membuat mahasiswa sering dihadapkan pada situasi yang memicu timbulnya berbagai hambatan. Terdapat berbagai upaya untuk mengurangi kecemasan tersebut, salah satunya adalah dengan mewarnai mandala. Tujuan penelitian ini adalah untuk mengetahui pengaruh mewarnai mandala terhadap menurunnya kecemasan pada mahasiswa. Penelitian ini menggunakan metode quasi eksperimen dengan desain pre-test post-test control group. Responden terdiri dari 20 mahasiswa yang mengalami kecemasan ringan sampai sangat berat, yang terbagi atas kelompok eksperimen dan kelompok kontrol. Hasil analisis penelitian menggunakan wilcoxon signed rank test ditemukan perbedaan sebelum dan sesudah diberikan perlakuan mewarnai mandala dengan nilai Z = -2,831 dengan nilai signifikansi 0,005 (p0,05). Hasil analisis ini menunjukkan bahwa mewarnai mandala dapat menurunkan kecemasan. Selain itu, penelitian ini juga melakukan analisis antara kelompok kontrol dan kelompok eksperimen. Hasil analisis menggunakan ujiMann-Whitney diperoleh nilai signifikansi 0,404 (p0,05). Hasil analisis menunjukkan bahwa tidak ada perbedaan hasil penurunan tingkat kecemasan pada kelompok eksperimen maupun kelompok kontrol.Kata Kunci: Kecemasan, Mewarnai Mandala, MahasiswaABSTRACTAnxiety is a psychological phenomenon that is commonly felt by everyone. Students with various activities can also experience anxiety. Students in the academic environment, who have never been separated from the demands of the task, make students often faced with the situations that trigger anxiety. There are various efforts to reduce this anxiety, one of which is to color the mandala. The purpose of this study was to determine the effect of coloring mandalas on decreasing anxiety in students. This study uses a quasi-experimental method with a pre-test post-test control group design. Respondents consisted of 20 students who experienced mild to extremely severe anxiety, which was divided into experimental groups and control groups. The results of the study analysis using Wilcoxon signed rank test found differences before and after the mandala coloring treatment given with a value of Z = -2,831 with a significance value of 0,005 (p 0,05). The results of this analysis indicate that coloring mandalas can reduce anxiety. In addition, this study also conducted an analysis between the control group and the experimental group. The results of the analysis using the Mann-Whitney test obtained a significance value of 0,404 (p 0,05). The results of the analysis showed that there were no differences in the results of the decrease in anxiety levels in the experimental group and the control group.Keywords: Anxiety, Coloring Mandala, Student


Author(s):  
I Made Permadi Utama

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.


2017 ◽  
Vol 1 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Muhammad Aswad

Improvisational exercises is a technique which consist three steps, they are preparation, modelling, and playing, that is preparation the teacher presents exercises, the students practice (modelling), and then procedure (playing)and the it provides three main goals; (1) the students pronounciation improve, (2) proper use of grammatical structure is reinforced, (3) vocabulary practice in enhanced. With this background, this research was quasi-experimental, with non-equivalent control group design. The sample consisted of two classes of students enrolled in 2013/2014 academic year, which one group was taken to be an experimental and the other to be a control group. The data obtained through the test were analysed by using statistical analysis. In conducting the research, the researcher used improvisational exercise technique to evaluate the students’ speaking performance which covered by three components of speaking, such as: fluency, accuracy, and comprehensibility. The research findings shows thatthe use of improvisational exercise technique (presentation, modelling, and playing) in teaching speaking can improve the speaking performance of the eight year students of  SMP Negeri 2 Majene significantly after being given treatment. The mean score of experimental group in post-test and control group were significantly different. The mean score of post-test in experimental group (3.36) was higher than control group (3.00).Thus, it is recomended for all English teacher to improve the students ability in speaking.


2019 ◽  
Vol 2 (3) ◽  
pp. 65
Author(s):  
Elsa Nurfuady ◽  
Heris Hendriana ◽  
Ghina Wulansuci

Basically humans have had creative potential since he was created. With the potential of its natural creativity, it is expected that early on, children will need activities related to creative ideas through coaching so that children can develop their creative potential optimally. For that we need a learning method that can improve children's creativity, one of which is the experimental method. Through the experimental method children can be trained in developing creativity. The purpose of this study is to examine the achievement of children's creativity in using experimental methods. This study used a quasi-experimental method with Nonequevalent Control Group Design research design using two classes consisting of B1 experimental group and B2 control class at Al-Masruroh Kindergarten. Based on data processing and research results obtained the results of the pre-test showed that there were no significant differences between the experimental group and the control group (TK Al-Masruroh) with p-value> 0.05 which was 0.145> 0.05, while the post test results showed creativity after the application of the experimental method there is a significant difference with the value of pvalue <0.05 which is the result of 0.000 <0.05. Based on the results of this study, the researcher recommends to child educators that the experimental method can be used as one of the learning methods to improve children's creativity.


2020 ◽  
Vol 9 (1) ◽  
pp. 119
Author(s):  
Adelina Kartika Dewi ◽  
Ni Made Ratminingsih ◽  
Made Hery Santosa

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.


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