scholarly journals PENGARUH LATIHAN KESEIMBANGAN METODE VLADIMIR JANDA TERHADAP RISIKO CEDERA OLAHRAGA BASKET PADA PELAJAR LAKI-LAKI SMP NEGERI 15 MEDAN

2019 ◽  
Vol 1 (2) ◽  
pp. 16-22
Author(s):  
Nondang Purnama Siregar ◽  
Santosa Santosa ◽  
Nur Arfian
Keyword(s):  
Junior High School ◽  
Postural Sway ◽  
Balance Training ◽  
Body Part ◽  
Male Students ◽  
Control Group ◽  
Training Method ◽  
Quasi Experimental ◽  
The Right ◽  
And Control

The incidence of injuries in the sport of basketball was ranked third after football and handball. Basketball is the learning materials required in junior high school through the physical education lesson. Balance training program as an effort to prevent the occurrence of the injury shown to reduce postural sway, increase muscle strength and improve balance strategy. The objectives of the research was to assess the effect of Vladimir Janda balance training method against the risk of injury to the male students at SMP Negeri 15 Medan, Indonesia. The research used quasi-experimental study with nonrandomized control group pretest posttest design. The subjects were male students aged 12-15 years who follow basketball extracurricular. Each group consisted 11 male students. Subject exercise basketball 2 times a week for 50 minutes. Vladimir Janda balance training method performed for 5 weeks and consists of 5 phases. Phase I- IV carried out 5 times a week, while Phase V is done 3 times a week and each session lasted 10 minutes. Postural sway measured by posturometer. Body part discomfort was measured by Nordic Body Map (NBM) questionnaires. The statistical test used was the Independent t-test. There is a decrease in the frequency of postural sway of the right foot(61%) between exercise and control group, musculoskeletal pain has decreased but not statistically significant.

scholarly journals PENGARUH LATIHAN KESEIMBANGAN METODE VLADIMIR JANDA TERHADAP RISIKO CEDERA OLAHRAGA BASKET PADA PELAJAR LAKI-LAKI SMP NEGERI 15 MEDAN

2019 ◽  
Vol 1 (2) ◽  
pp. 16-22
Author(s):  
Nondang Purnama Siregar ◽  
Santosa Santosa ◽  
Nur Arfian
Keyword(s):  
Junior High School ◽  
Postural Sway ◽  
Balance Training ◽  
Body Part ◽  
Male Students ◽  
Control Group ◽  
Training Method ◽  
Quasi Experimental ◽  
The Right ◽  
And Control

The incidence of injuries in the sport of basketball was ranked third after football and handball. Basketball is the learning materials required in junior high school through the physical education lesson. Balance training program as an effort to prevent the occurrence of the injury shown to reduce postural sway, increase muscle strength and improve balance strategy. The objectives of the research was to assess the effect of Vladimir Janda balance training method against the risk of injury to the male students at SMP Negeri 15 Medan, Indonesia. The research used quasi-experimental study with nonrandomized control group pretest posttest design. The subjects were male students aged 12-15 years who follow basketball extracurricular. Each group consisted 11 male students. Subject exercise basketball 2 times a week for 50 minutes. Vladimir Janda balance training method performed for 5 weeks and consists of 5 phases. Phase I- IV carried out 5 times a week, while Phase V is done 3 times a week and each session lasted 10 minutes. Postural sway measured by posturometer. Body part discomfort was measured by Nordic Body Map (NBM) questionnaires. The statistical test used was the Independent t-test. There is a decrease in the frequency of postural sway of the right foot (61%) between exercise and control group, musculoskeletal pain has decreased but not statistically significant.

scholarly journals Pengaruh Latihan Keseimbangan Metode Vladimir Janda Terhadap Resiko Cedera Olahraga Basket pada Pelajar Laki-laki SMP Negeri 15 Medan

2018 ◽  
Author(s):  
Nondang Purnama Siregar ◽  
FK UISU
Keyword(s):  
Postural Sway ◽  
Balance Training ◽  
Body Part ◽  
Male Students ◽  
Control Group ◽  
Training Method ◽  
Result Show ◽  
Quasi Experimental ◽  
The Right ◽  
And Control

The objectives of the research was to assess the effect of Vladimir Janda balance training method against the risk of injury to the male students at SMP Negeri 15 Medan, Indonesia. The research used quasi-experimental study with non-randomized control group pretest-postest design. The subjects were male students aged 12-15 years who follow basketball extracurricular. Each group consisted 11 male students. Subject exercise basketball 2 times a week for 50 minutes. Vladimir Janda Balance training method performed for 5 weeks and consists of 5 phases. Postural sway measured by posturometer. Body part discomfort was measured by Noutic Body Map (NBM) questioneries. The result show there is a descrease in the frequency of postural sway og the right foot (61%) between exercise and control group. Musculoskeletal pain has descrease but not statistically significant (p = 0,993).

scholarly journals The Effect of Interactive Computer Animation and Simulation on Students’ Achievement and Motivation in Learning Electrochemistry

2021 ◽  
Vol 10 (3) ◽  
pp. 311-324
Author(s):  
N. J. Ahmad ◽  
N. Yakob ◽  
M. A. H. Bunyamin ◽  
N. Winarno ◽  
W. H. Akmal
Keyword(s):  
Computer Animation ◽  
Male Students ◽  
Control Group ◽  
Abstract Concepts ◽  
Control Groups ◽  
Chemistry Learning ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
And Control

Electrochemistry is difficult to learn due to its abstract concepts involving macroscopic, microscopic, and symbolic representation levels. Studies have shown that students can visualize and improve their understanding of chemistry by using interactive computer animation and simulation. This study reports the effect of interactive computer animation and simulation module named “Interactive Electrolysis of Aqueous Solution” (IEAS) developed to aid students in learning electrolysis. A pre and post-test control quasi-experimental design was carried out to investigate the effects of the IEAS on students’ achievement and motivation in electrochemistry topics. This study involved 62 16-years-old male students from two different secondary schools. Pre and post electrochemistry achievement tests (EAT) and pre and post- Instructional Material Motivation Surveys (IMMS) were used. For EAT, using one-way ANOVA, it shows that there was a significant difference in the post-test mean score in this study on the understanding of the electrolysis concept between students in the treatment and control groups [F (1, 60) = 5.15, p <0.05]. The qualitative results also provided evidence that the students in the treatment group had a better conceptual understanding than the control group, especially at the microscopic representation level. For the IMMS test, there was a significant difference between the treatment and control groups in terms of the mean score of the post motivation IMMS test where p <0.05 in chemistry learning [F (1,59) = 266.89, p <0.05].  Thus, it can be concluded that IEAS has an impact on enhancing the students’ understanding of the electrolysis concept, and the students are more motivated to learn electrochemistry.

scholarly journals In Junior High School Boys, a Comparison Of Hollow Sprint and Acceleration Sprint Methods on the Sprinter 100 Meters

2021 ◽  
Vol 3 (01) ◽  
pp. 47-55
Author(s):  
Rian Akbari ◽  
Herli Pardilla ◽  
Zulfah Zulfah
Keyword(s):  
Junior High School ◽  
Male Students ◽  
Control Group ◽  
Control Group Design ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Experimental Type ◽  
Academic Year ◽  
Research Pattern ◽  
Sprint Ability

The  purpose  of  the study. The purpose of this study was to describe the increase in extracurricular spint abilities of male students at SMP Negeri 03. The research method was this study using an experiment with a quasi-experimental type of research and the research pattern used in this study was a nonequivalent control group design. Materials and methods. This design involves two groups, namely the experimental group and the control group, and the time of the study was carried out in June 2021. The subjects of this research were 10 extracurricular students of SMP Negeri 03 Bangkinang, Kampar Regency. Results. The results of this study can be concluded that the results of the 100 meter sprint ability of male extracurricular students at SMP Negeri 03 Bangkinang Kampar Regency with an average sprint ability of 100 meters 0.933, thus it can be concluded that by using the hollow sprint method on acceleration can improve the ability to run 100 sprints. Conclusions. Based on the results of data analysis, description, testing of research results and discussion, conclusions can be drawn based on the results of calculations that have been carried out, a significant value of 1.080 1.054 is obtained. Thus, the hypothesis states that there is a significant difference between the hollow sprint and accelerating sprint exercises on the 100-meter running speed of male students of SMP Negeri 3 Bangkinang in the 2020/2021 academic year, which is acceptable.

scholarly journals THE EFFECT OF SQ3R STRATEGY ON STUDENTS’ READING COMPREHENSION

2019 ◽  
Vol 5 (1) ◽  
pp. 48-57
Author(s):  
Duvis Nava Yunensia Ovi Adila
Keyword(s):  
High School ◽  
Reading Comprehension ◽  
Junior High School ◽  
English Language ◽  
Junior High ◽  
Hypothesis Test ◽  
Control Group ◽  
Quasi Experimental ◽  
And Control ◽  
Experimental Group

The objective of the study is to investigate the effectiveness of SQ3R strategy on students’ reading comprehension at State Junior High School 2 of Bululawang. The study used quantitative method with quasi-experimental design because there were two different groups for the samples namely experimental and control group and also the researcher gave different treatment for both experimental and control group. For experimental group the researcher taught by using SQ3R strategy while for control group the researcher taught by using skimming-scanning strategy. The researcher took VII A as control group and VIID as experimental group by using flipping coin. The instrument of this study was a reading test conducted twice as a pretest and post-test and the supporting instrument was a questionnaire. The results of hypothesis test showed that significance value was 0.000. So, there was a significance effect of SQ3R strategy on students’ reading comprehension at State Junior High School 2 of Bululawang. In other words, SQ3R strategy was effective and applicable for seventh grade students at State Junior High School 2 of Bululawang specifically on descriptivetext. Indeed, this strategy is recommended for teachers and students in learning English especially in reading skill to increase the students’ reading comprehension and stimulate the students’ activeness during teaching-learning process. Key Words: SQ3R Strategy, English Language Skill, Reading Comprehension.

scholarly journals The Effectiveness of a Proposed Program Based on Stepanz's Model of Changing the Alternative Chemical Concepts on the Achievement of Ninth-Grade Students in Jordan

2015 ◽  
Vol 9 (3) ◽  
pp. 472
Author(s):  
Basil A. Husein
Keyword(s):  
Ninth Grade ◽  
Study Data ◽  
Male Students ◽  
Control Group ◽  
Grade Levels ◽  
Chemical Concepts ◽  
Quasi Experimental ◽  
Ninth Grade Students ◽  
Teaching Learning ◽  
And Control

This quasi-experimental study aimed to investigate the effect of Stepanz' model in changing the alternative chemical concepts on the achievement of ninth-grade students. The participants of the study were 50 ninth grade male students who were distributed randomly into two groups: experimental group and control group. To answer the question of study, data was gathered and analyzed using (T-test). The results showed that there were statistically significant differences (p. < 0.05). In students mean scores with regards to their achievement. Those differences were in favor of the students who were taught using Stepanz model. In light of these results, the researcher recommend adopting Stepanz model in the teaching -learning process and training in-service teachers and reforming the scientific subjects in accordance with this model. In addition, the researcher recommends that more researches to be conducted to examine the effect of Stepanz model in changing the alternative chemical concepts on the achievement of students at different grade levels and in other subjects. 

scholarly journals Learning solar system using PhET simulation to improve students’ understanding and motivation

2018 ◽  
Vol 1 (2) ◽  
pp. 60
Author(s):  
Eka Cahya Prima ◽  
Aldia Ridwani Putri ◽  
Nuryani Rustaman
Keyword(s):  
Solar System ◽  
Conceptual Understanding ◽  
Junior High School ◽  
Qualitative Data ◽  
Sampling Technique ◽  
Control Group ◽  
Group Design ◽  
Quasi Experimental ◽  
And Control ◽  
Experimental Group

This research investigated the implementation of PhET simulation on students’ understanding and motivation in learning the Solar system. The method used in this research was quasi-experimental with matching pretest-posttest group design. The research conducted in one of private Junior High School located at Padalarang, Indonesia with a number of students (n=42). The sampling technique used was the purposive sampling to determine experimental group with PhET simulation in the learning science and control group without PhET simulation. The quantitative data of this research was obtained through the objective test on the mastery concept Solar system, while the qualitative data was detected through motivation rubric and questionnaire. The result shows that the students who learn the Solar system with PhET simulation have higher both improvement in conceptual understanding and motivation than without PhET simulation as teaching media. According to the analysis result, there is a moderate correlation between conceptual understanding and motivation with the learning Solar system in the use PhET simulation.

scholarly journals The Effect of Extensive Reading on the Vocabulary Mastery at the Seventh Grade Students of Junior High School

2021 ◽  
Vol 3 (1) ◽  
pp. 23-32
Author(s):  
Halimatus Sa'diyah
Keyword(s):  
High School ◽  
Junior High School ◽  
Junior High ◽  
Alternative Hypothesis ◽  
Control Group ◽  
Seventh Grade ◽  
Extensive Reading ◽  
Post Test ◽  
Quasi Experimental ◽  
And Control

The objective of this research was to know there was influence effect between extensive reading on the vocabulary mastery at the seventh-grade students of junior high school of MTs Hasyim Asy’ari Sukodono. The subject of this research is 7.1 and 7.2 students from the seventh grade. The method used in this research quasi-experimental. In collecting the data, the researcher used four steps that was analyzed. The first step was pre-test to the both experimental and control group. The second step was giving treatment in terms of extensive reading process to the experiment group. The next step was giving post-test to the both control and experimental group. Then, the fourth step was to know whether the opinion of the students about extensive reading for the vocabulary mastery using questionnaire. In analyzing the data, the researcher analyzed them by using statistical analysis in SPSS 16.0 by comparing the result of pre-test and post-test from the students. The result of data from this research was counted to know whether the experiment was successes or not. The result of this research shows that there is an effect between extensive reading on the vocabulary mastery. Based on the study presented that sig. 2 tailed (p) was 0.003 though alpha (α) was 0.05. It means p < α. It can be concluded that the HO (Null Hypothesis) was rejected and Ha (Alternative Hypothesis) was accepted. It proved that extensive reading is effective in improving students’ vocabulary mastery.

Does REDW (Read, Examine, Decide, Write) Strategy Enhance Students’ Reading Comprehension?

2018 ◽  
Vol 2 (2) ◽  
pp. 114
Author(s):  
Muslimaini Muslimaini ◽  
Wahyuni Fitria
Keyword(s):  
Reading Comprehension ◽  
Junior High School ◽  
Posttest Score ◽  
T Test ◽  
Control Group ◽  
Test Calculation ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Level Of Significance ◽  
And Control

The objectives of this study were to determine whether or not there was a significant effect of using REDW ( Read, Examine, Decide, Write ) strategy on reading comprehension and to know the significant difference of reading comprehension between students who are taught by using REDW (Read, Examine, Decide, Write) strategy and those who are not . The study was conducted at Islamic Junior High School Tarbiyah Islamiyah Jambi. The population in this study were all eighth graders, each class consisted of less than 30 students. The researcher used REDW strategy in class 8B as the experimental class and class 8A used conventional method as control class. This research used quantitative – experimental approach. The design of study was quasi-experimental design, it was the pretest-posttest non- equivalent group design. The data was collected by a test as research instruments, there were two test: pre-test and posttest. From the results of the test, the independent t-test calculation in posttest score in both groups showed that the significant value was higher than level of significance (0.870 > 0.05). It indicated that there was the significant difference between experimental and control group. Moreover, the paired t-test calculation showed the result of paired sample t-test (5.949 < 0.05) in which there was a significant effect of using REDW strategy on students reading comprehension.

scholarly journals The Effect of Macrozoobenthos Diversity Module based on Problem-based Learning on Junior High School Students’ Environmental Attitudes

2021 ◽  
Vol 10 (3) ◽  
pp. 400-406
Author(s):  
S. Sueb ◽  
J. Damayanti
Keyword(s):  
High School Students ◽  
Junior High School ◽  
Environmental Attitudes ◽  
Problem Based Learning ◽  
Control Group ◽  
School Students ◽  
Learning Modules ◽  
Life Problems ◽  
Quasi Experimental ◽  
And Control

It is necessary to build students’ responsibility character when dealing with life problems such as environmental pollution. Because there is much pollution, it is important for students to analyze the condition of the polluted environment because they are expected to overcome the problems. The effort made is to teach students using problem-based learning modules. This module contains material of macrozoobenthos diversity as bioindicators of river water quality. This study aims to determine the effect of macrozoobenthos diversity as a bioindicator module based on problem-based learning on students’ environmental attitudes. The research design is quasi-experimental using a nonrandomized control group pretest-posttest design. The sample in this study was 60 students divided into experimental class and control class. The test results showed that the significance value for PBL modules is 0,016 ≤ 0.005, so the hypothesis is accepted. There is a difference between students who use the PBL module, which improves students’ environmental attitudes than science textbooks. Students’ initial environmental attitudes also influence it.

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