scholarly journals Stock market reaction to xenophobic violence in an emerging economy

2017 ◽  
Vol 7 (2) ◽  
pp. 194-203
Author(s):  
Collins C Ngwakwe ◽  
Richard Ilorah
Keyword(s):  
Stock Market ◽  
T Test ◽  
Economic Consequences ◽  
Stock Performance ◽  
Paired Sample ◽  
Social Instability ◽  
Stock Market Reaction ◽  
Business Operations ◽  
The Social ◽  
Significant Difference

This paper presents an initial evaluation of possible effect of xenophobic violence on the Johannesburg Stock Market. Violence is inimical to economic development as it constraints normal business operations and causes a rebound on the stock market. The paper applied the event trend analysis combined with a statistical t-test of paired sample means in the pre and post-xenophobic period stock performance. Data was drawn from the JSE All Share Index - Capped Indices Performance (J303 - Capi DY) for 2008 and 2015, during & after the xenophobic violence of 2008 and 2015. The economic consequences of social instability were substantiated with related literature. The theoretical foundation was inclined on the integrated threat theory and the social contract theory. Findings from the analysis of paired sample t-test showed a significant difference in means of stock performance with P<0.05 within and after the xenophobic period. Furthermore, a t-test of similarity in stock performance chart for periods of xenophobic violence 2008 and 2015 showed no significant difference in stock performance trend – indicating similarity in stock chart between 2008 and 2015 periods of xenophobic violence. The paper recommends the need for further research of a broader scope that will consider many years of xenophobic events or similar violence across countries using multiple stock performance and economic performance indicators

scholarly journals Stock Market Reaction LQ 45 for Indonesia's 2019

2020 ◽  
Vol 5 (9) ◽  
pp. 170-184
Author(s):  
Yohannes Sukarno ◽  
Matrodji H. Mustafa
Keyword(s):  
Stock Market ◽  
Presidential Elections ◽  
Market Reaction ◽  
Stock Exchange ◽  
T Test ◽  
Test Analysis ◽  
Paired Sample ◽  
Stock Market Reaction ◽  
Actual Return

This study aims to examine the stock market reaction of lq 45 to the 2019 presidential and vice presidential elections. The sample used is LQ 45 shares listed on the Indonesia Stock Exchange (IDX) in 2019. The number of samples in this study is as many as 10 issuers. The study used a paired sample t test analysis by testing actual return and expected (normal) return to determine whether or not it was abnormal during the 2019 presidential and vice presidential elections. The results of this study show that it does not have a significant impact between the return market to the stock retun.

scholarly journals The Effect of Mergers on Financial Performance PT. Bank Woori Saudara Indonesia 1906, Tbk

2019 ◽  
Vol 1 (1) ◽  
pp. 19-30
Author(s):  
Irna Maulana ◽  
Gemala Paramita ◽  
Syahiruddin Syahiruddin
Keyword(s):  
Financial Performance ◽  
Financial Services ◽  
Quantitative Methods ◽  
T Test ◽  
Financial Ratios ◽  
Parametric Test ◽  
Paired Sample ◽  
Significant Difference ◽  
Merger Process ◽  
Quota Sampling

The Mergers are carried out by the companies to get a number of benefits. Mutually beneficial conditions will occur if the merger activities carried out can create the synergy, which finally, it is expected to improve the company's performance. This study aims to determine whether the financial performance after the merger has changed or not. The financial ratios studied are financial ratios four years after the merger and before the merger. This research was conducted by quantitative methods, by taking data from PT. Bank Woori Saudara Indonesia 1906, Tbk, which has merged in 2014 and has engaged in banking financial services. Sampling in this study uses quota sampling. the data is obtained from one bank, that is, a bank which has merged. The parametric test used to answer the hypothesis in this study was the Paired Sample T-Test. The results of this study indicate that in partial testing of the seven financial ratios, there was a significant difference in the ratio of BR and EPS, while the CAR, TATO, NPM, ROI, and ROE ratios showed no significant differences. So the merger process carried out by banks does not show a significant difference because the synergy has not yet been achieved after the merger.

scholarly journals Effect of Two Different Mouth Rinses on S. mutans Counts in Subjects Undergoing Orthodontic Treatment – A Pilot Study

2020 ◽  
pp. 148-155
Author(s):  
S. Abirami ◽  
Ravindra Kumar Jain ◽  
A. S. Smiline Girija
Keyword(s):  
Streptococcus Mutans ◽  
Reference Group ◽  
T Test ◽  
Orthodontic Brackets ◽  
Plaque Index ◽  
Cervical Region ◽  
Paired Sample ◽  
Group I ◽  
Significant Difference ◽  
Group Ii

The study is thus aimed to assess and compare the efficacy of Herbostra oil pulling mouthwash with Chlorhexidine mouthwash in reducing plaque accumulation around orthodontic brackets. A total of 20 patients were considered in this study randomly assigned into Group I (experimental group - Herbostra oil pulling mouthwash) and Group II (reference group-0.2% Chlorhexidine mouthwash). The plaque index scores were recorded in each individual at baseline (pre) and after 3 weeks (post). Dental plaque samples were collected around the orthodontic brackets at the cervical region of maxillary upper molars and lower incisors by cotton swabbing method and evaluated for the presence of microflora. Paired sample t-test for Streptococcus mutans count showed that statistically significant difference only within the group II (p=0.000) (Chlorhexidine group) and there was no significant difference within the group I (p=0.103) (Herbostra group). Paired sample t-test for plaque index score shows statistically significant difference within the groups (0.000).Independent t test showed statistically significant difference in the levels of  Streptococcus mutans count after 3 weeks between the two groups (p=0.000) with the mean values of (2.230±0.5056), (1.080±0.3458) in group I and group II respectively. From this study we concluded that, even though there was a reduction in plaque scores and S. mutans count with Herbostra oil pulling mouthwash but it was not as effective as Chlorhexidine mouth rinse.

scholarly journals The Announcement of Sharia Bank’s Conditional Merger Agreement. How Investor Reacted?

2021 ◽  
Vol 2 (2) ◽  
pp. 136-146
Author(s):  
Syamsuddin Syamsuddin ◽  
Versiandika Yudha Pratama
Keyword(s):  
Event Study ◽  
Stock Price ◽  
Abnormal Return ◽  
Secondary Data ◽  
T Test ◽  
Event Window ◽  
Paired Sample ◽  
Average Abnormal Return ◽  
Significant Difference ◽  
Before And After

This study aims to determine there is a difference in average abnormal return of BRI Syariah before and after the signing of the Conditional Merger Agreement (CMA), which is on October 12th, 2020. This research used event study for method and the data in this study are secondary data in the form of stock price data of BRI Syariah. The event window in this study for 11 (eleven) working days which is 5 (five) days before the event, 1 (one) day when the event occurs and 5 (five) days after the signing of the Conditional Merger Agreement (CMA) BUMN sharia bank. Meanwhile, the estimated period is set for 120 exchange days, namely at t-125 to t-6. Test conducted by paired sample t-test. The results of the paired sample t-test showed that there is no significant difference between the average abnormal return of BRI Syariah shares before and after the signing of the Conditional Merger Agreement. It can be concluded that neither the market nor investors reacted to the signing of the Conditional Merger Agreement (CMA) that occurred at BRI Syariah Bank.

scholarly journals Improving Students’ Writing Skill by Using Wholesome Scattering Game

2021 ◽  
Vol 1 (1) ◽  
pp. 39-47
Author(s):  
Dina Novrieta ◽  
Sopi Nurisa
Keyword(s):  
Null Hypothesis ◽  
Alternative Hypothesis ◽  
Writing Skills ◽  
Sampling Technique ◽  
T Test ◽  
Control Group ◽  
Paired Sample ◽  
Significant Difference ◽  
Writing Skill ◽  
Academic Year

The aim of this research is to describe the implementation of Wholesome Scattering Game in improving students’ writing skills on descriptive text and to find out whether there is a significant difference between students who were taught by using Wholesome Scattering Game and the students who were not. This research used quantitative approach focusing on experimental research which was conducted at SMAN 2 Sungaiselan in academic year 2019/2020. The researcher used purposive sampling technique and two classes were taken as samples, with 69 students (35 students for the control group and 34 students for the  experimental). The result of the test was analyzed by using statistical analysis of Paired sample t-test and Independent sample t-test. The finding showed that the students who were taught by using Wholesome Scattering Game got higher score than those who were taught by using non-Wholesome Scattering Game. It means that the alternative hypothesis (Ha) was accepted, while the null hypothesis (Ho) was rejected. It could be concluded that there was a significant difference between students who were taught by using Wholesome Scattering Game and the students who were taught without using Wholesome Scattering Game.

scholarly journals DYNAMIC NEUROMUSCULAR STABILIZATION LEBIH MENINGKATKAN KESEIMBANGAN DINAMIS DARIPADA PERCEPTUAL MOTOR PROGRAM PADA ANAK DOWN SYNDROME USIA 7-15 TAHUN DI YAYASAN PRADNYAGAMA DENPASAR

2019 ◽  
Author(s):  
Merinda Ulfa ◽  
Ketut Tirtayasa ◽  
Wahyuddin ◽  
Susy Purnawati ◽  
Luh Putu Ratna Sundari ◽  
...  
Keyword(s):  
Down Syndrome ◽  
Dynamic Balance ◽  
Motor Program ◽  
Statistical Test ◽  
T Test ◽  
Paired Sample ◽  
Children With Down Syndrome ◽  
Significant Difference ◽  
Group 2 ◽  
Group 1

Background: Disorder of dynamic balance is often found in children with Down syndrome which causes difficulty in maintaining posture against impending disorders. If this is left it will certainly cause problems of further motor development. Purpose: To prove the physiotherapy intervention that can improve dynamic balance among children with down syndrome 7-15 years. Methods: The research is true experimental with pre-test and post-test group design. This study used 24 subjects in 2 groups, group 1 (n=11) given dynamic neuromuscular stabilization on while group 2 (n=11) given perceptual motor program. Divided randomly into 2 groups that is group 1 dynamic neuromuscular stabilization and group 2 perceptual motor program. The exercise is held 3 times a week in 6 weeks. Measurements of this dynamic balance are using sixteen balance tests. Result: The paired sample t-test statistical test in group 1 showed a significant difference with value (p <0.001) on mean before intervention 48.5±5.428 and after intervention 72.75±4.413. The paired sample t-test statistical test in group 2 showed a significant difference with value (p <0.001) on mean before intervention 48.5±5.3 and after intervention 69.42±4.379. Different test between group 1 and 2 using independent sample t-test showed a significant difference with value (p<0.001). Conclusion: The conclusions are dynamic neuromuscular stabilization is better than perceptual motor program in improving dynamic balance among children with down syndrome 7-15 years at Pradnyagama Foundation Denpasar.

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 The Use of Islamic History Videos through Swell Strategy to Improve Senior High Students’ Narrative Writing Achievement

1970 ◽  
Vol 5 (1) ◽  
pp. 53-62
Author(s):  
JUNA WARNI
Keyword(s):  
English Language Learners ◽  
English Language ◽  
T Test ◽  
Control Group ◽  
Narrative Writing ◽  
Science Class ◽  
Writing Achievement ◽  
Islamic History ◽  
Paired Sample ◽  
Significant Difference

The objectives of this study were to find out: (1) whether or not there was a significant improvement on students’ narrative writing achievement between before and after the students were taught by using Islamic history videos through SWELL Strategy, and (2) whether or not there was a significant difference on students’ narrative writing achievement between the students who were taught by using Islamic history videos through SWELL Strategy and those who were not. The population of this study was all the eleventh grade students of Senior High School Nurul Iman Palembang which consisted of 65 students. The sample of this study was taken by using total sampling. Thus, the total number of the sample was 65 students. The sample was XI Science class (control group) which consisted of 33 students and XI Social Science class (experimental group) which consisted of 32 students. In collecting the data, written test was used. The test was given twice to both experimental and control group, as a pretest and posttest. To verify the hypotheses, the data of students’ pretest and posttest of both groups were analyzed by using paired sample t-test and independent sample t-test in SPSS. The findings showed that the p-output (sig 2-tailed) from paired sample t-test was 0.000 which was lower than 0.05, and the t-value 7.954 which was higher than t-table 2.040 (with df= 31). Then, p-output from independent sample t-test was 0.021 which was lower than 0.05, and t-value 2.371 which was higher than t-table 1.998 (with df= 63). Therefore, it could be inferred that narrative writing by using Islamic history videos through Social-Interactive Writing for English Language Learners (SWELL) Strategy gave significant improvement on the students’ narrative writing achievement, and gave significant difference between students’ who were taught by using Islamic history videos through SWELL Strategy and those who were not.

scholarly journals ENHANCING STUDENTS READING ABILITY THROUGH INQUIRY BASED LEARNING TO EFL STUDENTS

2017 ◽  
Vol 1 (1) ◽  
pp. 60
Author(s):  
Farnia Sari
Keyword(s):  
Reading Ability ◽  
Sampling Technique ◽  
T Test ◽  
Reading Test ◽  
Field Observations ◽  
Inquiry Based Learning ◽  
Paired Sample ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Efl Students

IBT techniques is series of activities that involved maximally throughout the student's ability to search and investigate in a systematic, critical, logical, analytical, so that they can formulate their own discoveries with confidence the search of knowledge and understanding to satisfy curiosity. IBT technique is also supposed to the teachers be creative to set situations. This method used was quasi experimental design. The purposive sampling technique was used on this study. The data were collected by reading test. The collected data was analyzed by using paired sample t-test and independent sample t-test. The results showed that the students reading ability was improved and there was a significant difference between the students who were taught by using IBT and those who were not. With IBT technique encouraged students to take the initiative to have question the phenomenon, to conduct field observations, to analyze the data, and to draw conclusions. Thus, it is to integrate students and synergize various skills of language and different methods.

scholarly journals THE USE OF GENRE-BASED APPROACH TO IMPROVE WRITING SKILL IN NARRATIVE TEXT AT THE ELEVENTH GRADE STUDENTS OF SMA ETHIKA PALEMBANG

2019 ◽  
Vol 3 (1) ◽  
pp. 280
Author(s):  
Haryanti Haryanti ◽  
Farnia Sari
Keyword(s):  
T Test ◽  
Narrative Text ◽  
Control Group ◽  
Writing Style ◽  
Narrative Texts ◽  
Paired Sample ◽  
Writing Test ◽  
Significant Difference ◽  
Writing Skill ◽  
Experimental Group

Objective of this research was to find out significant difference of reading achievement between students The objective of this study was to find out whether or not there was a significant improvement in students' skill in writing narrative texts after they were taught by using Genre-Based Approach. The method of this study was experimental design. The experimental group received a genre-based approach while the control group received the conventional method. The population was the eleventh-grade students of SMA Ethika Palembang. The sample was 60 students which was selected by cluster random technique . The data collection was a writing test. The data were analyzed by using paired sample t-test and independent sample t-test. It indicated that there was a significant difference in writing skill between the students who were taught using GBA and those who were not.  Based on the result of data, it was interpreted that all aspects of writing are increased after taught by using GBA Approach. The best-achieved writing aspect was style and quality expression. It assumed the use of words: phrases, sentences, and paragraphs in expressing the ideas were clear and effective in writing style. Further, the study provided evidence for the effectiveness of using the genre-based approach in improving the students' writing skill in narrative text. 

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