scholarly journals Model Pengembangan Pembelajaran PJBL Berbasis Proyek untuk Meningkatkan Kreatifitas Siswa

2021 ◽  
Vol 3 (2) ◽  
pp. 140-147
Author(s):  
Nana Misrochah
Keyword(s):  
Data Analysis ◽  
Mean Value ◽  
T Test ◽  
Acid Base ◽  
Paired Sample ◽  
Cooking Oil ◽  
Achievement Rate ◽  
Significant Difference ◽  
Acid Base Titration ◽  
The Mean

Through this research, it is hoped that acid-base titration learning will be more meaningful and can contribute to student creativity. PjBL model is an integrated learning that is carried out cooperatively through projects that develop student skills, so that student creativity will increase. The project given in this research is making of soap from the wrinkled oil. In the process can be attributed to the application of acid-base titration material by calculation of acid numbers and saponification numbers on the cooking oil before being processed into soap. The results of data analysis shows data significance> 0.05 which means that the data is normally distributed for pretest and posttest. The data of paired sample t-test shows that the significance obtained is 0,000 <0.05 which means that there is a significant difference between the mean value of the integrated creativity test with the acid-base titration concept before treatment is given after treatment is given. Creativity improvement were calculated using the N-Gain value resulting in an average achievement rate of 0.50 and belonging to the moderate category. Posttest results indicate that the implementation of project-based LKP is effective in improving student creativity with classically average is 81.5%.

scholarly journals THE USE OF VIRTUAL LABORATORY TO IMPROVE STUDENTS' CONCEPTUAL UNDERSTANDING IN ACID BASE TITRATION SUBJECT

2019 ◽  
Vol 3 (1) ◽  
pp. 43
Author(s):  
Erni Erni
Keyword(s):  
Data Analysis ◽  
Conceptual Understanding ◽  
T Test ◽  
Virtual Laboratory ◽  
Acid Base ◽  
Virtual Laboratories ◽  
Analysis Technique ◽  
Acid Base Titration ◽  
Final Data ◽  
The Mean

The research has been conducted to figure out the use of virtual laboratories on students' conceptual understanding of acid-base titration subject at SMAN 1 Tambusai. The study was an experimental research with one group pretest-posttest design. The sample consisted of one class, XI IPA2, a class that was treated with a virtual laboratory. The data analysis technique used was the t-test. Based on the results of the final data processing using the t-test, it was obtained that sig 5 ≤ 0.05; where 0,000 ≤ 0.05; so it was concluded that there were significant differences between the mean scores of the pretest and posttest. This shows that there is an increase by the use of virtual laboratories towards the students' conceptual understanding

scholarly journals Efektifitas Puerperal Gymnastic dan Kegel Exercises terhadap Involusi Uterus pada Ibu Postpartum Hari 1 - 3

2021 ◽  
Vol 8 (2) ◽  
pp. 92-99
Author(s):  
Kholisotin Kholisotin ◽  
Kholifatun Naziro ◽  
Zainal Munir ◽  
Ahmad Kholid
Keyword(s):  
Sampling Technique ◽  
T Test ◽  
P Value ◽  
Test Results ◽  
Paired Sample ◽  
Uterine Involution ◽  
Kegel Exercises ◽  
Significant Difference ◽  
The Mean ◽  
Postpartum Mothers

During labor, women experience many reproductive changes, one of which is uterine involution. If the uterine involution is late to return to normal, it will cause subinvolution, puerperal gymnastic techniques and kegel exercises are the easiest techniques to use and are very effective. The purpose of this study was to determine the effectiveness of puerperal gymnastic and kegel exercises on uterine involution in postpartum mothers day 1-3 at BPM Hj. Nengah Mardani Tenggarang Bondowoso. This type of research uses a pre-experimental research methodology using a two-group interpretation-posttest design, with a sample of 30 respondents. The sampling technique in this study used total sampling. Data analysis used paired sample t test and independent t test. The independent t test results showed that there was no significant difference between puerperal gymnastic and kegel exercises in overcoming uterine involution in postpartum mothers with a p value of 0.039 (p value> α 0.05). Of the two techniques, Kegel exercises were more effective in reducing involution. uterus with a mean difference of 6.7333> than the mean puerperal gymnastic of 5.8000.

scholarly journals PENGARUH METODE WAFA TERHADAP KEMAMPUAN ANAK MEMBACA AL-QUR’AN DI MI AL-HIDAYAH MANGKUJAJAR KEMBANGBAHU LAMONGAN

2019 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Musa'adatul Fithriyah
Keyword(s):  
Elementary Education ◽  
Mean Value ◽  
T Test ◽  
Paired Sample ◽  
Analysis Techniques ◽  
A Value ◽  
Post Test ◽  
Experimental Type ◽  
The Mean ◽  
The Right

The Qur'an learning is very fundamental in Islamic education, especially in elementary education. The Qur'an is one of the subjects that must be taught to children. Early education in the Qur'an is expected to produce young people having a strong mental foundation, education not only makes children as prosperous in the world, but also provides sufficient provisions to both improve their religion and practice their scriptures. To be able to practice the Holy Qur'an correctly, children must be guided and taught how to read the Qur'an properly in accordance with the rules of true recitation. In fact the Qur'an learning at MI AL-Hidayah Mangkujajar Kembangbahu Lamongan initially tended to be monotonous for being dominated by conventional learning methods. As a result,  the Qur'an learning only produced generations that could read the Qur'an with the average ability without any sense of love and closeness to the Qur'an instead of having enthusiasm in learning it well. As time goes by, the Qur'an learning at MI Al-Hidayah has increasingly developed by applying the so-called Wafa method. This method teaches children to be able to read and memorize the Qur'an by maximizing the right brain. This is classified as a new method, but it is quite practical and fun in the learning process. The research was aimed at determining the effect of the Wafa method on the ability of children to read the Qur'an at MI Al-Hidayah Mangkujajar Kembangbahu Lamongan. The research method is quantitative with the experimental type of one group pretest-post test, data analysis techniques use the mean pretest and posttest, in addition, to testing the hypothesis it uses the Paired Sample T-Test with the SPSS 16. The results showed the influence of the Wafa method on the children ability to read the Qur'an at MI Al-Hidayah Mangkujajar Kembangbahu Lamongan. It was proven from the results of the analysis through the mean pretest formula, it was obtained a value of 82.92 and increased in the acquisition of the mean value of posttest amounted to 85.75. In addition, in the Paired Sample T-Test based on significance values with SPSS 16, it is known that the Sig. (2-tailed) value is 0,000 <0,05, because sig. (2-tailed) of 0,000 is smaller than 0.05, then the hypothesis is accepted and it could be concluded that there is an influence of the WAFA Method on the ability to read the Qur'an at MI Al-Hidayah Mangkujajar Kembangbahu Lamongan.

scholarly journals Analisis Kinerja Keuangan Perusahaan Sebelum dan Sesudah Right Issue di BEI

2018 ◽  
Vol 7 (3) ◽  
pp. 1623
Author(s):  
Guido Gian Layuk Runtung ◽  
I Putu Yadnya
Keyword(s):  
Data Analysis ◽  
Financial Performance ◽  
Research Data ◽  
T Test ◽  
Financial Ratios ◽  
Paired Sample ◽  
Analysis Technique ◽  
Significant Difference ◽  
Before And After ◽  
The Right

The Purpose of this study was to analyze the diffrences in financial performance before and after right issue. Right issue a corporate action by the company by issuing new shares offered to existing shareholders. Sampling in this study using method purposive sampling. The samples in this research are 33 companies that conduct period 2011 – 2015. The financial performance in will be analysis through the five financial ratios namely CR, DER, TAT, ROA, and PER. This research data analysis technique using paired sample t test and Wilcoxon signed ranks test. The results showed that significant diffrences in TAT ratio before and after the right issue. While the research for the ratios of CR, DER, ROA, and PER showed no significant difference before and after right issue. These result indicate that the company’s financial performance two years after the right issue is more efficient in utilizing company’s assets in order to increase sales.

scholarly journals The Effectiveness of Phonics Approach in Teaching Reading

2018 ◽  
pp. 52
Author(s):  
Atika Salman Faris
Keyword(s):  
Null Hypothesis ◽  
Alternative Hypothesis ◽  
T Test ◽  
Read Aloud ◽  
Seventh Graders ◽  
Teaching Reading ◽  
Paired Sample ◽  
Significant Difference ◽  
Post Test ◽  
The Mean

This research aimed to determine the effectiveness of phonics approach in teaching reading for the seventh graders of SMP Negeri 1 Aikmel, East Lombok, and to what extent it is effective. This research was designed as  pre-experimental with read aloud test as the instrument to collect data. The sample of this research consisted of 36 students of SMP Negeri 1 Aikmel. The sample was taken through purposive sampling. In collecting the data, a pre-test and a post-test were given to the students. SPSS 17 for Windows and paired-sample t-test were applied to analyze the collected data. After, calculating the data, it could be known that there was a significant difference in the mean scores between pre-test and post-test, t(df=35) = 23.314 at p = 0.001, meaning that the null hypothesis was rejected and the alternative hypothesis was accepted. In a nutshell, phonics approach was significantly effective in teaching reading for the seventh graders of SMP Negeri 1 Aikmel.

scholarly journals COMBINATION OF HYPNOSIS THERAPY AND RANGE OF MOTION EXERCISE ON UPPER-EXTREMITY MUSCLE STRENGTH IN PATIENTS WITH NON-HEMORRAGHIC STROKE

2018 ◽  
Vol 4 (1) ◽  
pp. 104-111
Author(s):  
Chandra Irawan ◽  
Mardiyono Mardiyono ◽  
Suharto Suharto ◽  
Aris Santjaka
Keyword(s):  
Muscle Strength ◽  
Upper Extremity ◽  
Mean Value ◽  
T Test ◽  
Control Group ◽  
P Value ◽  
Significant Difference ◽  
The Mean ◽  
And Control ◽  
Paired T Test

Background: Range of Motion (ROM) exercise has been identified in the literature that it has an effect in improving muscle strength, especially in patients with stroke. However, little is known about the effect of ROM exercise combined with hypnosis therapy.Objective: To determine the effect of combination of hypnosis therapy and ROM exercise on upper extremity muscle strength in patients with non-hemorrhagic.Methods: This study employed a quasy experiment with pretest-posttest control group design. Thirty-two samples were selected using simple random sampling, which 16 randomly assigned in the experiment and control group. Muscle strength was measured using Muscle Strength Scale. Hypnosis Deepening test was used to measure the level of hypnosis depth. Paired t-test and Independent t-test were used for data analysis.Results: The mean value of muscle strength in the experiment group was 3.50 and  the mean value in the control group  was 2.62. Independent sample t-test obtained p-value = 0.012, indicated that there was a statistically significant difference in the mean of muscle strength of upper extremity in the experiment and control group. Paired t-test obtained p-value = 0.000, which indicated that there was significant difference between the average of muscle strength value before and after treatmentConclusion: The combination of hypnosis therapy and ROM exercise has a significant effect in increasing muscle strength of upper extremity in patients with stroke non-haemorrhagic.

scholarly journals Present and Importance levels leadership competencies of principals in Nepalese Schools

2017 ◽  
Vol 3 (1) ◽  
pp. 111-122
Author(s):  
Karna Bahadur Thapa
Keyword(s):  
Statistical Analysis ◽  
Effective Leadership ◽  
Secondary Level ◽  
Leadership Competencies ◽  
Mean Value ◽  
T Test ◽  
Present Level ◽  
Leadership Competency ◽  
Significant Difference ◽  
The Mean

Leadership competency is one of the major qualities of Principal to ensure the performance of schools. Principal is responsible to manage the overall school's environment so that s/he should have effective leadership competency. The study was explored the present level and desired level of leadership competency of principal of Nepalese schools. The study had applied Stratified proportionate sampling to select the 817 respondents from Principal, Teachers and Supervisor. The secondary level schools - government aided, community managed and institutional were selected from the Tarai, Mountain, Hill and Valley. The study found that there was significant difference between the present level and Importance level of leadership competency of Principals of Nepalese schools. The statistical analysis of t-test showed that the mean value of Importance level of competency was significantly higher than the mean value of present level of competency on the basis of types of schools and types of respondents. The study observed that there was need of improvement in present level of leadership competency of principals.

scholarly journals The effectiveness of mobile learning in the teaching and learning of probability

2019 ◽  
Vol 9 (2) ◽  
pp. 9-15
Author(s):  
Durga Gnanasagaran ◽  
Abdul Halim Amat @ Kamaruddin
Keyword(s):  
Mobile Learning ◽  
Teaching And Learning ◽  
T Test ◽  
Control Group ◽  
Paired Sample ◽  
Significant Difference ◽  
Post Test ◽  
The Mean ◽  
And Control ◽  
Experimental Group

This study investigates the effectiveness of mobile learning in the teaching and learning of Probability. The context of mobile here is not just restrained to gadgets such as smartphones but also the fact that teaching and learning can occur beyond boundaries and anywhere according to the convenience and personal preference of the students. This study made use of the pretest – posttest quasi experimental design and the students chosen for the study were from a pre-university college located in the northern region of the country. A total of 92 students made up the sample of the study. There were 46 students each in the experimental and control groups respectively. Cluster random sampling was employed as the sampling method here. The instrument used to collect data with the aim of strengthening the outcome of the study was the achievement test. A quantitative approach was undertaken specifically to analyse the obtained data. The paired sample t-test and independent sample t-test were executed in the data analysis process. Initially, every student involved in the study regardless of the group they were in possessed equal strength in their understanding of the content being covered as indicated by the results of their pre-test. The paired sample t-test yielded p < 0.05 which meant that there was a significant difference between the mean score of the pre-test and post-test in the experimental group and control group respectively. The outcome of the independent sample t-test showed that there was a significant difference between the mean score of the experimental group and that of the control group in the post-test (p < 0.05). This indicated that the treatment via mobile learning had indeed played a role in the improved performance of students in Probability, hence proving the effectiveness of mobile learning in the teaching and learning of Probability.

scholarly journals Improving Students’ Vocabulary Mastery by Using Authentic Materials through Communicative Approach

2017 ◽  
Vol 4 (2) ◽  
pp. 151-164
Author(s):  
Umar Umar ◽  
Irmayanti Irmayanti
Keyword(s):  
Data Analysis ◽  
T Test ◽  
Vocabulary Test ◽  
Chronological Order ◽  
Authentic Materials ◽  
Authentic Material ◽  
Significant Difference ◽  
Post Test ◽  
The Mean ◽  
Communicative Approach

The research aimed at finding out whether or not using of authentic materials through communicative approach improves the vocabulary of the students. This applied a pre-experimental method. The population of the research was the second grades students of a state high school comprising four classes and one of which chosen as the sample by using purposive sampling. The sample consisted of thirty two. The data were collected by using vocabulary test that consisted 20 items. The proce4 of collecting data was presented in chronological order as pre-test given before treatment and then post-test was giving after treatment as students’ achievement. The data analysis showed that there was significant difference of the students’ vocabulary achievement after giving treatment by using authentic materials through communicative approach. It was proved by the mean score of pre-test was 5.97 and the mean of post-test was 7.82. The data was analyzed by using t-test was higher than t-table value. The value of t-test was 9, while t-table value was 1.695 at the 0.05 level significance. Based on the result above, the writer concludes that the use of authentic material through communicative approach improves the students’ vocabulary mastery.

scholarly journals Phonics Approach in Teaching Reading

2019 ◽  
Vol 6 (3) ◽  
pp. 204
Author(s):  
Atika Salman Paris
Keyword(s):  
Null Hypothesis ◽  
Alternative Hypothesis ◽  
T Test ◽  
Read Aloud ◽  
Seventh Graders ◽  
Teaching Reading ◽  
Paired Sample ◽  
Significant Difference ◽  
Post Test ◽  
The Mean

This research aimed to determine the effectiveness of phonics approach in teaching reading for the seventh graders of SMP Negeri 1 Aikmel, East Lombok, and to what extent it is effective. This research was designed as pre-experimental with read aloud test as the instrument to collect data. The sample of this research consisted of 36 students of SMP Negeri 1 Aikmel. The sample was taken through purposive sampling. In collecting the data, a pre-test and a post-test were given to the students. SPSS 17 for Windows and paired-sample t-test were applied to analyze the collected data. After calculating the data, it was found that there was a significant difference in the mean scores between pre-test and post-test, t(df=35) = 23.314 at p = 0.001, meaning that the null hypothesis was rejected and the alternative hypothesis was accepted. In a nutshell, phonics approach was significantly effective in teaching reading for the seventh graders of SMP Negeri 1 Aikmel.

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