scholarly journals An Analysis of Integrated Practicum Demands of Virtual Lab Models in Hydrocarbon Materials

Author(s):  
Erlina Erlina

This study aims to determine the effect of the implementation of a practical guide to interact with a virtual laboratory model on students' understanding of practicing on hydrocarbon materials. Students' understanding is included in the dimensions of cognitive and affective processes. This research was conducted at the Percut Sei Tuan Pure Pure Private High School in the odd semester of the 2018/2019 school year. The research method used was quasi experimental design with pretest-posttest control group design. Sampling was done using purposive sampling technique. The sample in the study were students of class XI MIA 2 as an experimental group with learning using virtual laboratories and students of class XI MIA 1 as a control group using conventional learning. The sample in each group amounted to 36 people. Data retrieval is done using a description of students' concept understanding. Data analysis using independent sample T-Test test obtained t count of 3.021 with t table 2.045 means that t count> t table and significant value 0.004 <0.05. Then Ho is rejected and H1 is accepted at a significant level of 0.05 so it is concluded that there is a significant difference between the average posttest value of the experimental group and the control group. This shows that there is an effect of applying virtual laboratories to students' concept understanding.

2017 ◽  
Vol 4 (2) ◽  
pp. 66-73
Author(s):  
Ida Zahara

The objectives of this study were to find out whether or not there was any significant difference in reading comprehension achievement between the students who were taught by using guided discovery and those who were taught by using conventional strategy to the eleventh grade students of MAN Arahan. This research was conducted through quasi-experimental method and used matching only pre-test post-test control group design. The population was 140 students of the eleventh grade of MAN Arahan in the academic year 2012/2013. Seventy students were chosen as the sample by using convenience sampling technique. The sample were assigned into two groups; the experimental group and the control group. Each group consisted of thirty five students. The data were obtained by reading comprehension test. A test was given both to the experimental group and control group before and after the treatment. The result of the test was analyzed by using matched t-test. The result of the study showed that there was any significant difference between eleventh grade students of MAN Arahan who were taught by using guided discovery and those who were taught by conventional strategy. The t-obtained was 4.52 at the significant level 0.05 in two tailed testing and df=21, the critical value of t-table is 2.080. Since the value of t-obtained was higher than t-table, then the null hypothesis was rejected and the alternative hypothesis was accepted. It can be stated that guided discovery is effective in teaching reading comprehension, and can be used as the alternative technique for teaching reading comprehension to the eleventh grade students of MAN Arahan.


2019 ◽  
Vol 11 (1) ◽  
pp. 58
Author(s):  
Ulfah Sofindra Syahidatunnisa ◽  
Holil M Par'i ◽  
Fred Agung Suprihartono ◽  
Fred Agung Suprihartono ◽  
Rr. Nur Fauziyah ◽  
...  

One of the factors that influence Kadarzi's achievement is the knowledge and attitudes of the toddler's mother. This study aims to determine the effect of counseling using backsheet media on the knowledge and attitudes of toddlers' mothers about Kadarzi in the Cipeundeuy Health Center District of West Bandung Regency. The research design used was quasi-experimental with a pre-post test control group design model with a total sample of 28 people each for the experimental group and the control group. The experimental group was given an intervention in the form of counseling using flipchart media, while the control group was given an intervention in the form of counseling using leaflet media. The results obtained from the Wilcoxon test in the experimental group and the t-dependent test in the control group were changes in the increase in knowledge and attitude scores in the experimental group and the control group after intervention (p <0.005). The results of the Mann-Whitney test showed no significant difference between knowledge and attitude scores in the experimental group and the control group (p> 0.005). It is better to do further research related to Kadarzi's behavior so that the application of the Kadarzi indicator can be monitored so that it can describe the results of attitudinal changes, and to increase Kadarzi's knowledge and attitudes to toddler mothers.


Author(s):  
Reinita Reinita

This research aims to determine the effect of the use of Discovery Learning on the results of learning Pkn in five grade students SDN 02 Aur Kuning Bukittinggi This research is a type of experimental research in the form of Quasi-Experimental Type Nonequivalent Control Group Design. The sampling technique using total sampling technique with the sample number 40students.This is evidenced by the results of the t-test with a significance level of 5% obtained count (4,28>2,03). The result of Civic learning obtained by the experimental group is higher than the control group, it is shown from mean 77,35 and the mean obtained by the control group is 74,1.


2020 ◽  
Vol 3 (1) ◽  
pp. 41
Author(s):  
Sulasfiana Alfi Raida ◽  
Didi Nur Jamaludin

<p>This research aimed to analyze the effectiveness of constructivist learning using guided discovery models on the concept of a regulatory system for curiosity and anti-narcotics attitudes. This research used a quasi-experimental and pre-experimental design. The population was all of the 4th semester MIA classes of SMA Negeri 1 Salatiga which consists of seven classes. Samples were taken with a convenience sampling technique.  MIA 2.4 and 5.4 as the experimental group and MIA 3.4 and 4.4 as the control group. The data in this research were collected by the scale of curiosity and anti-narcotics attitude. Data were analyzed with descriptive analyzed and t-test. The result showed as follows: there is a significant difference at the end of the curiosity and anti-narcotics attitude of constructivist learning using guided discovery model compared with direct instruction model learning; the average of student’s curiosity and anti-narcotics attitude score ≥ 3,00 on constructivist learning using guided discovery model. It is concluded that constructivist learning using a guided discovery model is effectively completed learning outcomes of the curiosity and anti-narcotics attitude on the regulatory system concept.</p>


2018 ◽  
Vol 8 (5) ◽  
pp. 181
Author(s):  
Sajad Shafiee ◽  
Fahimeh Talakoob ◽  
Mina Fatahi

Dynamic assessment has been widely used in educational literature over the past two decades. The present study aimed at investigating the effect of using dynamic assessment on teaching the rhythm of English to Iranian EFL learners and scrutinizing their attitudes towards it. The participants of the study were 30 Iranian EFL leaners at the intermediate level of proficiency, who were conveniently selected from a foreign language institute in Isfahan, Iran. In order to achieve the objectives of the study, the participants were divided into two homogenous groups, including the experimental group and control group. In this quasi-experimental, pretest-posttest-control-group-design research study, the control group followed traditional method of learning pronunciation and rhythm, while dynamic assessment approach was used to teach the same materials to the experimental group. In contrast to the control group, the experimental group took an active role in the classroom by having more interaction and using the ongoing hints and prompts provided by the teacher. The result of the posttest unfolded that there was a significant difference between the performances of the two groups, and that the experimental group participants managed to outperform the control group members on the pronunciation posttest. Moreover, based on the attitude questionnaire, EFL learners had grown a positive attitude towards the use of dynamic assessment to learn rhythm. The results of this study demonstrated that through the implementation of DA, the proper form of mediation could be provided to the learners regarding their ZPD.


2019 ◽  
Vol 3 (1) ◽  
pp. 40-46
Author(s):  
Khairina Ulfa Syaimi

This research is intended to observe the effect of through sociodrama technique in improving students’ interpersonal communication skill at the tenth-grade students of SMK Ar-Rahman Misriadi Langkat. In the research methodology, the writer used quasi-experimental design, focusing on non- equivalent control group design. In addition, to decide the sample of the research the writer used non-probability sampling technique in the form of purposive sampling technique. There were twenty four  male students who had been chosen as the research sample.The sample chosen was classified based on the interpersonal communication  skill in the lower rate. Moreover, the instrument used to decide the sample was the instrument of interpersonal communication skill which provided four options on a Likert scale. The technique of analysis was carried out by using descriptive statistics which provided empirical mean to know the average scores between the pre-test and the posttest in the experimental group and controlled group respectively. The result showed that the score of Asymp. Sig were 0.000 which meant that the interpersonal communication skill of the male students Sig < 0.05. It can be concluded that the high number of increasing of interpersonal communication skill was experienced by the male students  in the experimental group than in the controlled group. Therefore, the result of this research was used to improve the interpersonal communication skill of the tenth- grade male students  at SMK Ar-Rahman Misriadi Langkat.


2018 ◽  
Vol 2 (2) ◽  
pp. 94
Author(s):  
Ni Komang Sarini ◽  
Dewa Nyoman Sudana ◽  
Putu Nanci Riastini

This study is aimed find out significant difference of natural science learning outcomes of students who follow peer tutor and do not follow peer tutor. This study is quasi experimental study especially non-equivalent post tes only kontrol groip design. The population of this study was the entire of IV grade students in Gugus II Santalia Kubutambahan District. The sample was determined by using random sampling technique. The sample was IV grade students if SDN 2 Kubutambahan was chosen as experimental group and class IV SDN 4 Kubutambahan as control group. The data was teken by using multiple choice test. The data obtained were analized by using descriptive statistical analysis and inrerential statistic t-test with the formula of polled variance. The results showed the lessons with peer tutor and the group of students who do not follow peer tutor. the findings are peer tutor makes the students motivated, trained, and active to espress their option. furthermore, peer tutor provides an opportunity for the students to exchange ideas, and their work together. in addition, learning with peer titor becomes fluent communicating


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>


Author(s):  
Nur Aliyah Nur

The research aimed to find out the effectiveness of describing and drawing picture technique in teaching transactional speaking at the second semester students of English Education Department at State Islamic University of Alauddin Makassar. This research employed quasi-experimental with non-equivalent control group design with pre-test and post-test. The population of this research was the second semester students of English education department at State Islamic University of Alauddin Makassar. The population was selected by using purposive sampling technique to determine the sample for experimental class and control class. The instrument used in this research was test. The test was used in the pre-test and post-test. The data indicated that there was a significant difference between the students’ post-test in the experimental class and post-test in the control class. Based on the findings of the research, the researchers concluded that describing and drawing picture technique was effective in teaching transactional speaking. Therefore, describing and drawing picture technique gave student opportunity to practice transactional speaking in classroom, it also could increase students’ motivation in learning in English since they feel their purpose of learning English so that they could use it and also could achieve it.The research aimed to find out the effectiveness of describing and drawing picture technique in teaching transactional speaking at the second semester students of English Education Department at State Islamic University of Alauddin Makassar. This research employed quasi-experimental with non-equivalent control group design with pre-test and post-test. The population of this research was the second semester students of English education department at State Islamic University of Alauddin Makassar. The population was selected by using purposive sampling technique to determine the sample for experimental class and control class. The instrument used in this research was test. The test was used in the pre-test and post-test. The data indicated that there was a significant difference between the students’ post-test in the experimental class and post-test in the control class. Based on the findings of the research, the researchers concluded that describing and drawing picture technique was effective in teaching transactional speaking. Therefore, describing and drawing picture technique gave student opportunity to practice transactional speaking in classroom, it also could increase students’ motivation in learning in English since they feel their purpose of learning English so that they could use it and also could achieve it.


2019 ◽  
Vol 4 (1) ◽  
pp. 23-32
Author(s):  
Firda Ratna Dila

This study aims to examine the effect of mind mapping learning methods on social studies materials comprehension of students at Baleendah 2nd Junior High School. This study used a quasi-experimental method with the design of "nonequivalent control group design" with the pattern of "pretest" and "posttest" and carried out treatments in class VIII-F as the experimental class group and VIII-H as the control group used as a comparison. Sampling uses a purposive sampling technique. Data collection on the social studies material comprehension of students use questions as the main data. After the data is collected, the analysis is carried out quantitatively through hypothesis testing or T-Test. The results of the difference between "pretest" and "posttest" in the experimental class given treatment showed a significant difference in improvement, while the control class between "pretest" and "posttest" which were not given treatment the results were no difference or no improvement. It can be said that there are influences from mind mapping learning methods to on social studies materials comprehension of students.Keywords: comprehension of material, Mind Mapping Learning Method, Social Studies Learning


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