scholarly journals The Effect of Mangala, the Intelligence Game Taught by Distance Education, on the Mathematical Motivations and Problem-solving Skill Levels of 6th-Grade Students

2021 ◽  
Vol 12 (1) ◽  
pp. 9
Author(s):  
Neslihan Usta ◽  
Büşra Cagan
Keyword(s):  
Distance Education ◽  
Data Analysis ◽  
Problem Solving ◽  
Statistical Tests ◽  
Rank Test ◽  
Distribution Data ◽  
Research Approach ◽  
Performance Tasks ◽  
Skill Levels ◽  
Significant Difference

This study examines the effect of "Mangala" on the mathematical motivation and problem-solving skill levels (PSoSL) of 6th-grade students. A single-group pre-test-post-test quasi-experimental design based on the quantitative research approach was used in the study conducted through distance education. The sample consisted of 14 6th-grade students. The data collection tools used in the study, which continued for three weeks in the 2020-2021 academic year, were the Mathematical Motivation Scale (MMS) and Performance Tasks (PT). The data obtained from this study were analyzed using the SPSS 22.0 package program. Since the sample size was small and the data did not show normal distribution, data analysis was carried out using the Wilcoxon Signed Rank Test, one of the non-parametric statistical tests. Data analysis showed a statistically significant difference between the pre and post-experiment MMS scores of the students. The effect of "Mangala" on students' PSoSL was evaluated through performance tasks. The Progressive Scoring Scale (PSS) taken from Baki (2014) was used to evaluate performance tasks. Researchers redefined each criterion in the scoring key and set four levels: "very good," "good," "unsatisfactory," and "empty." The analysis of the problems in the performance tasks showed that the students usually gave "very good" and "good" answers. However, some students had difficulties finding solution strategies and writing a similar problem; thus, they left blank answers.

Association between intratumoral HER2 heterogeneity (IHH) and trastuzumab (T-mab) efficacy in HER2 positive–gastric cancer (GC).

2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 92-92
Author(s):  
Takeru Wakatsuki ◽  
Noriko Yamamoto ◽  
Keisho Chin ◽  
Mariko Ogura ◽  
Eiji Shinozaki ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Statistical Tests ◽  
Progression Free Survival ◽  
Clinical Impact ◽  
Heterogeneous Group ◽  
Rank Test ◽  
Her2 Positive ◽  
Kaplan Meier ◽  
Significant Difference ◽  
The Difference

92 Background: ToGA study showed superiority of adding T-mab to standard chemotherapy and a positive correlation between HER2 expression levels and the T-mab efficacy. In gastric cancer IHH is frequently recognized but its clinical impact on T-mab efficacy is unclear. Methods: Patients who were treated with T-mab and had surgical specimens available for IHC test were retrospectively examined. When all tumor cells overexpressed HER2 protein by IHC, the tumor was defined as non-HER2-heterogeneous. The others were defined as HER2-heterogeneous. Progression-free survival (PFS) and overall survival (OS) were estimated using by Kaplan-Meier methods and compared by the log-rank test. The level of significance was set to p<0.05 and all statistical tests were two-sided. Results: 23 patients were enrolled. Their median age was 68 years and 83% were male. PS 0, GEJ cancer, intestinal type histology, visceral metastasis (lung or liver), and previous chemotherapy were found in 57%, 35%, 83%, 57%, and 57% of them, respectively. After a median follow-up of 11.3 months, the median OS, PFS, and overall response rate were 14.4 months, 10.8 months, and 62.5%, respectively. All tumors were IHC3+, and 13 were non-HER2-heterogeneous and 10 were HER2-heterogeneous. There was no significant difference in clinicopathological features between the two groups. Median PFS in non-HER2-heterogeneous group (21.9 months) was significantly longer than that in HER2-heterogeneous group (8.6 months), (HR: 0.24 [0.06-0.91], P=0.024). Median OS in non-HER2-heterogeneous group was not reached while that in HER2-heterogeneous group was 12.9 months (HR: 0.29 [0.06-1.42], P=0.102). A higher rate of response to T-mab was seen in non-HER2-heterogeneous group than in HER2-heterogeneous group, though the difference was not statistically significant (75% vs. 50%, p=0.608). Conclusions: IHH might have robust clinical impact on T-mab efficacy for HER2 positive GC. These findings should be validated by independent large cohorts and further molecular correlative analyses are warranted.

scholarly journals Pembelajaran Fisika Berbantuan Bahan Ajar Berbasis Kontekstual dengan Mengintegrasi Kearifan Lokal Untuk Meningkatkan Penguasaan Konsep Fisika

2017 ◽  
Vol 8 (2) ◽  
Author(s):  
Muhammad Satriawan ◽  
Muhammad Subhan ◽  
Fatimah Fatimah
Keyword(s):  
Data Analysis ◽  
Problem Solving ◽  
T Test ◽  
Equal Treatment ◽  
Teaching Materials ◽  
Physics Learning ◽  
Average Value ◽  
Conventional Teaching ◽  
Significant Difference ◽  
Contextual Teaching

This research is a quasi experimental research that aims to determine the differences and the improvement of mastery of physics concepts in the classroom using contextual teaching materials that integrated local wisdom with classes using conventional teaching materials. The research design used was pretest posttest control group design. Both the experimental and control classes are given equal treatment, but the experimental class uses contextual teaching materials that integrate local wisdom while the control class uses conventional teaching materials. The number of students in the experimental class is 25 students while the control class is 30 Students. The data analysis used parametric statistics with a two tailed t test to determine the difference and the N-gain test to find out the improvement of student conceptualization. The two tailed t test used SPSS 20 software assistance in the data analysis process. Based on result of data analysis that obtained Sig value. (2-tailed) by 0.000 <0.01 (α = 1%). This shows that there is a very significant difference between physics learning through problem solving method using contextual teaching materials with physics learning through problem solving using conventional teaching materials. In addition, based on the N-gain calculation the average value of  N-gain for the experimental class is 0.87 with the high category whereas the average value of N-gain for the control class is 0.65. This shows that the experimental class where the physics learning using materials Contextual teaching has increased the mastery of the concept higher than the control class that uses conventional teaching materials.

scholarly journals EFEKTIVITAS LAYANAN INFORMASI DENGAN METODE PROBLEM SOLVING TERHADAP PENINGKATAN KONTROL DIRI SISWA

2018 ◽  
Author(s):  
Firman - Firman
Keyword(s):  
Problem Solving ◽  
Information Service ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Self Control ◽  
Control Group ◽  
Research Approach ◽  
Significant Difference ◽  
Before And After ◽  
Experimental Group

Today found some students lack the ability to control himself in school. It is seen from the discovery of some students in violation of the norms and rules that have been established in schools deliberately. The aim of thus study reveals : (1) Differences in students’ self-control experimental group before and after treatment are given information service with the method of problem solving; (2) Differences in students’ self-control before and after control group without treatment given by the information service of problem solving methods; (3) Differences in students’ self-control experimental group were given treatment information services with methods of problem solving with students of control group without treatment given by the information service of problem solving methods. This research is a quantitative research approach Quasy-Experiment. Population in this research that the students MTsN Lubuk Buaya Padang and samples of this study were selected using simple random sampling technique. The instruments used were questionnaires. (angket). Data were analyzed using the Wilcoxon Signed Ranks Test and Kolmogorov-Smirnov Two Independet Sample with the help of the program Statistical Product and Service Solution (SPSS) versi 20. The result of this research found that: (1) there are significant differences increase student self control before and after the service information by the method of problem solving in the expwrimental group, (2) there is no significant difference in the increase of self-control students in the control group, (3) there are significant differences increase self-control students in the expwerimental group and control group.

scholarly journals Efektivitas Pelatihan Hardiness untuk Meningkatkan Sikap Tangguh dalam Menyelesaikan Masalah

2020 ◽  
Vol 12 (2) ◽  
pp. 65-80
Author(s):  
Joice Mailoa ◽  
Aulia Ramdani
Keyword(s):  
Problem Solving ◽  
Study Data ◽  
Rank Test ◽  
Brief Cope ◽  
Resilience Scale ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
Quasi Experimental ◽  
Signed Rank Test

Any changes in the system of an organization could be stressful. Having hardiness would be important to deal with a problem. This study aims to seek out the effectiveness of hardiness training in improving problemsolving. A quasi-experimental design with one group pretest-post test design was applied. There were sixteen employees of various organizational divisions enrolled in this study. Data were collected before and after the six-session of hardiness training using the Brief COPE scale and the Dispositional Resilience Scale (DRS-15) developed by Bertone. Results from the Wilcoxon signed-rank test showed that there was no significant difference in the attitude of the effectiveness of problem-solving among employees before and after training (p>0,05). However, there were differences in knowledge of understanding hardiness before and after training. (p=.002, p>0,05). It can be concluded that hardiness training could increase the knowledge about hardiness; but not the attitude toward problem-solving.

scholarly journals THE ANALYSIS OF ABNORMAL RETURN, LIQUIDITY AND STOCK RISK DIFFERENCE DURING PRE AND POST STOCK SPLIT IN IDX PERIOD 2010 – 2014

2017 ◽  
Vol 8 (1) ◽  
pp. 20
Author(s):  
Umi Mardiyati ◽  
Rachmattullah Rachmattullah ◽  
Gatot Nazir Ahmad
Keyword(s):  
Abnormal Return ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Sampling Period ◽  
Risk Difference ◽  
Rank Test ◽  
Distribution Data ◽  
Significant Difference ◽  
Stock Split ◽  
Before And After

This study aimed to analyze the differences of abnormal return, liquidity and risk stock before and after the stock split on companies listed in Indonesia Stock Exchange 2010 - 2014. The sample are 29 companies selected by purposive sampling. Period of observations used in this study is 5 days before the stock split and 5 days after the stock split. The analysis technique used is the Kolmogorov-Smirnov test for normality test, paired sample t-test for normally distributed data and Wilcoxon signed rank test if distribution data is not normal. Results from the study showed that there is no significant difference in abnormal returns between before and after stock split period, there are differences in liquidity between the before and after stock split period and there is no difference in stock risk between before and after the stock split period.   Keywords : Stock Split, Abnormal Return, Liquidity, Stock Risk

scholarly journals Ginger Tea on Dysmenorrhoea Among Nursing Students

2019 ◽  
Vol 09 (02) ◽  
pp. 64-75
Author(s):  
Sheetal Crasta ◽  
Philomena Fernandes ◽  
Shynee Paul
Keyword(s):  
Nursing Students ◽  
Quantitative Research ◽  
Rating Scale ◽  
Favorable Effect ◽  
Rank Test ◽  
Control Group ◽  
Research Approach ◽  
Menstrual Pain ◽  
Significant Difference ◽  
And Control

Abstract Background Dysmenorrhea is a common problem which can alter the daily routines of females. Primary dysmenorrhea affects 40 to 90% women. Dysmenorrhea sufferers account for 3 among 4 women as per evidences. Traditional remedies are chosen to get some relief because of their least side effects. These remedies have a favorable effect in reducing dysmenorrhea. Ginger is used since ancient times as various forms of alternative medicine. One of the traditional uses of ginger is for pain relief, including menstrual pain. The aim of this study was to identify the effectiveness of ginger tea in dysmenorrhea. Objectives The objectives of this study are (1) Assess the level of dysmenorrhea among nursing students. (2) Determine the effectiveness of ginger tea on dysmenorrhea among nursing students. (3) Find the association between level of dysmenorrhea before the administration of ginger tea and demographic variables. Methodology A quantitative research approach with quasi-experimental design was considered. The sample comprised of 50 students with moderate and severe menstrual pain as per numerical pain rating scale. The baseline data was collected. Ginger tea was prepared by the researcher and administered 120 mL to the subjects; on the first 2 days of menstruation in the morning and night after breakfast and dinner, respectively. Level of different aspects of pain was assessed before the administration as well as 2 hours after administration of ginger tea using Pain Quality Assessment Scale. Pre- and post-test were taken before as well as 2 hours after administering the drink. A total of four doses are given and ratings were measured eight times. Data was analyzed using descriptive and inferential statistics. Results The present study revealed that the median score of all seven characteristics of pain was higher in the preintervention when compared with postintervention. Mann-Whitney U test showed that there was a significant difference in level of pain between the experimental and control groups (p < 0.05). Wilcoxon signed-rank test showed that there was a significant difference in pain measurements before and after the administration of ginger tea (p < 0.05). These findings indicate that ginger tea was effective in reducing menstrual pain. Chi-square test and likelihood ratio were used to find the association between baseline dysmenorrhea with demographic and clinical variables. It was found that there is no significant association (p > 0.05). The responses given by the experimental and control group was mentioned separately. Ginger tea effects and experience were verbalized by the experimental group alone. This supported the statistical finding that ginger tea is effective in reducing dysmenorrhea. Conclusion Findings revealed that the administration of ginger tea can bring a sudden relief among the subjects with dysmenorrhea. The awareness about alternative therapies must be created among public.

scholarly journals Analysis of the Effect of Stock Split on Abnormal Stock Return and Share Liquidity

2021 ◽  
Vol 1 (7) ◽  
pp. 629-640
Author(s):  
Jerri Priatno ◽  
Freddy Freddy
Keyword(s):  
Stock Returns ◽  
Statistical Tests ◽  
Abnormal Returns ◽  
Stock Splits ◽  
Research Approach ◽  
Quantitative Research Methods ◽  
Significant Difference ◽  
Stock Split ◽  
Before And After ◽  
The Relationship

Strong companies will not be too affected by news issues about stock splits, but several other companies that do stock splits actually experience a decline in demand for their shares. This study aims to analyze the effect of stock splits on abnormal stock returns and stock liquidity. In this study, the authors use quantitative research methods with a descriptive research approach, because there are variables to be examined and the relationship aims to describe the characteristics or behavior of a population in a systematic and accurate way regarding the relationship between the variables to be studied. The population in this study are companies listed on the Indonesia Stock Exchange, namely companies that carried out stock splits in 2019. Based on the results of research, the authors draw the following conclusions: Based on statistical tests on abnormal returns, it was found that market reactions occurred during the day after the stock split, the first day until the fourth day after the stock split. Based on the results of the different tests on Abnormal Returns before and after the stock split, it shows that there is a significant difference between the returns before and after the stock split. Based on the results of the different tests on the average TVA before and after the stock split, it shows that there is a significant difference between TVA before and after the stock split.

scholarly journals Comparison of Different Methods of Education in the Adoption of Oral Health Care Knowledge

2021 ◽  
Vol 9 (10) ◽  
pp. 111
Author(s):  
Lidia Gavic ◽  
Martina Marcelja ◽  
Kristina Gorseta ◽  
Antonija Tadin
Keyword(s):  
Health Care ◽  
Oral Health ◽  
Statistical Tests ◽  
Pairwise Comparison ◽  
Oral Health Care ◽  
Rank Test ◽  
Significant Difference ◽  
Different Types ◽  
Before And After ◽  
Video Material

Aim: The scope of this study was to determine if there is a critical distinction in the usage of lectures, videos, and pamphlets as educational material utilized in the adoption of oral health care knowledge. Materials and methods: Three-hundred and thirty children from ages 11 to 13 from the city of Split, Croatia completed the questionnaire on oral health care knowledge. Consequently, they were educated by randomly using a method: lecture, pamphlet, or video. Finally, after education, their knowledge was tested again. Results: Different statistical tests were used for comparison of different sets of data. The Wilcoxon signed-rank test showed a statistically significant difference (p ˂ 0.001) compared to the results before and after education. The Kruskal–Wallis test comparing knowledge outcomes after three different types of education: video, lecture, and pamphlet, showed a statistically significant difference in the final knowledge between groups (p ˂ 0.05). A pairwise comparison between different types of education showed a significant statistical difference between education conducted by pamphlet and video material (p = 0.003) and pamphlet and lecture (p = 0.006). No difference was observed between the level of knowledge acquired through video material education and lectures (p = 0.928). Conclusion: Videos and lectures as means of education showed equal effectiveness in the adoption of oral health care knowledge, while the pamphlet was a method that proved to be less effective.

scholarly journals EVALUATING THE LEVEL OF TEACHER PERFOMANCE: PEDAGOGIC, SOCIAL AND PERSONAL COMPETENCY

2021 ◽  
Vol 4 (1) ◽  
pp. 86
Author(s):  
Rully Putri Nirmala Puji ◽  
Ratna Dwi Lestari
Keyword(s):  
Data Analysis ◽  
Social Competence ◽  
Statistical Tests ◽  
Teaching Experience ◽  
Teacher Competence ◽  
Competency Development ◽  
Multivariate Statistical ◽  
History Teachers ◽  
Significant Difference ◽  
Pedagogical Competence

This study aims to evaluate the level of competency of history teachers in Jember. Competency indicators are pedagogical competence, social competence and personality competence based on the perspective of students. This research used quantitative analyzed using inference statistics to analyze differences in teacher competence according to gender and teaching experience. The research sample involved 100 students across five schools. Data analysis used SPSS with multivariate statistical tests. This study indicates a significant difference between teacher pedagogical competence based on gender and teacher social competence based on the level of teaching experience. This study reflects that competency development is still needed to improve teacher competence to improve learning quality.

scholarly journals Heuristic: Its Influence to the Mathematics Anxiety and Coping Mechanism

2015 ◽  
Vol 2 ◽  
pp. 192-199
Author(s):  
Ma. Aletha V. Hobilla ◽  
Belinda M. Go
Keyword(s):  
Problem Solving ◽  
Mathematics Anxiety ◽  
Math Anxiety ◽  
Coping Mechanisms ◽  
Rank Test ◽  
Coping Mechanism ◽  
Heuristic Strategies ◽  
Significant Difference ◽  
Before And After ◽  
Problem Solving Strategies

This is a quantitative-qualitative study that aims to determine the influence of heuristic or problem-solving strategies (PS) to the mathematics anxiety of 97 or 87% of the Bachelor of Elementary Education (BEEd) second-year students of Western Visayas College of Science and Technology enrolled in the subject Problem Solving during the second semester, SY 2014-2015. It also aims to find out the coping mechanisms and perceived causes of mathematics anxiety of the participants. For the quantitative data, a one-group pretest-posttest design was used. The Mathematics Anxiety-Apprehension Survey (MAAS) was administered before the start of the intervention and at the end of the intervention. For the qualitative data, the participants were asked to write a journal on the perceived causes of their math anxiety and their coping mechanism. Personal interviews were conducted to participants with high math anxiety regarding their coping mechanisms. The statistical tools used were the mean, standard deviation, Wilcoxon Signed Rank test, and Kruskal-Wallis Test. The test in the hypothesis was set at .05 alpha level. Results showed that, as an entire group, and when grouped according to sections, the participants have “moderate” mathematics anxiety. Likewise, the participants have “moderate” mathematics anxiety before and after learning heuristic strategies. There is no significant difference in the level of mathematics anxiety when the participants were grouped according to sections and before and after learning heuristic strategies. The perceived causes of mathematics anxiety of the participants were mostly attributed to their bad experience with their teachers in basic education such as “terror” teachers, physical or verbal punishment, as well as time pressure during math examinations/quizzes. Another identified factor was the quality of teaching like teachers spoke too fast or spoke with a low voice. Some of the common coping mechanisms of the participants were “studying harder”, “utilizing problem-solving strategies or heuristics”, “ asking help from peers”, “listening attentively during class “, and “developing positive attitude” in mathematics.

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