SELF-CONCEPT, ATTITUDE AND PERCEPTION OF USEFULNESS OF PHYSICS AND CHEMISTRY ACCORDING TO TYPE AND LOCATION OF SCHOOLS

This study was an attempt to test if students differed in their self-concept, attitude and their perception of the usefulness of Physics and Chemistry in terms of their type of school and location. To test this hypothesis, t-test was used to compare differences in the mean scores in terms of type of school and location. Pearson's Product Moment Correlation coefficient was used to determine the relationships between independent and dependent variable. Four hundred and forty six (446) students constituted the sample. The attitude towards Physics and Chemistry and the perception of the type of school showed there was no significant difference between single-sex and co- educational school. There was no significant difference between single- sex and co- educational school (mixed) students in their self- concept in Physics and Chemistry. There was no significant difference between single- sex and co- educational school (mixed) students in their perception of the usefulness of Physics and Chemistry. Results also show that urban students have better perception of the usefulness of Physics and Chemistry than the rural students. The difference in perception of the usefulness of Chemistry is statistically significant but the difference in perception of the usefulnessofPhysicsisnotstatisticallysignificant. Bothruralandurbanstudentshad positive attitude and self-concept for Physics and Chemistry.

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Effect of smoking on cardiovascular autonomic functions

International Journal of Physiotherapy and Research ◽

10.16965/ijpr.2021.101 ◽

2021 ◽

Vol 9 (2) ◽

pp. 3780-3784

Author(s):

P.Vani ◽

◽

Sharan B Singh M ◽

Keyword(s):

Heart Rate ◽

Autonomic Function ◽

T Test ◽

Resting Heart Rate ◽

Autonomic Functions ◽

Mean Values ◽

Function Tests ◽

Significant Difference ◽

The Mean ◽

The Difference

Introduction: Cigarette smoking is a prime risk factor for cardiovascular morbidity and mortality. Chronic smoking results in autonomic dysfunction leading to increased cardiovascular risk in smokers. The present study was planned to study the effect of smoking on the Cardiovascular Autonomic Functions among smokers. Materials and Methods: Fifty male subjects who were in the age group of 25 to 45 years. They were grouped into 25 smokers and 25 non-smokers. The participant subjects were selected among the staff members, residents and the patients from the routine OPD in SVIMS. Prior to study, they were informed about the procedure and the purpose of the study tests and written consents were obtained from them. The Cardiovascular Autonomic Function Tests were assessed by using a POLYGRAPH which was available in the department. Results and Conclusion: After applying the ‘t’-test for the difference between the two sample means, it was observed that there was a highly significant difference between the mean values of the BMI(i.e.p<0.01) and the para-sympathetic function tests among the smokers and the non – smokers(i.e.p<0.00). The Resting Heart Rate had significantly increased and the Deep breathing difference, the postural tachycardial index (Response to standing) and the Valsalva Ratio had significantly decreased in the smokers as compared to those in the non – smokers. After applying the ‘t’-test for the difference between the two sample means, it was observed that there was no significant difference between the mean values of the Postural hypotension test (i.e. p>0.05) and that there was a highly significant difference between the mean values of the Sustained handgrip test in the smokers and the non – smokers (i.e. p<0.00). KEY WORDS: Cardiovascular autonomic function tests, Smoking, Resting heart rate.

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Explicit Affective Strategy Instruction to Develop Speaking Performance of Egyptian EFL University Students

English Language Teaching ◽

10.5539/elt.v12n4p85 ◽

2019 ◽

Vol 12 (4) ◽

pp. 85 ◽

Cited By ~ 1

Author(s):

Samah Mohammed Fahim El Sakka

Keyword(s):

Performance Test ◽

Strategy Instruction ◽

T Test ◽

Control Group ◽

Significant Difference ◽

Post Test ◽

The Mean ◽

Speaking Performance ◽

The Difference ◽

Experimental Group

The purpose of the present study is to investigate the effect of explicit affective strategy instruction on the speaking performance of Freshmen English majors at Faculty of Education, Suez University, Egypt. The design of the study is a pre-post quasi experimental one. The instrument is a pre/post speaking performance test (designed by the researcher). Participants were eighty Freshmen English majors, randomly divided into two groups: a control group (N=40) and an experimental one (N=40). During the experiment, the experimental group was explicitly taught some affective strategies (lowering anxiety, encouraging yourself and monitoring emotions) while the control group was taught using the traditional method. All participants were tested using the pre/post speaking performance test before and after the intervention. The difference between the post test’s mean scores of the control and experimental groups were calculated using Independent Samples t-test and the difference in the mean scores between the pre- and post tests of speaking performance was calculated for each group separately using Paired Samples t-test. A significant difference was found between the post test’s mean scores of the control and the experimental groups in favor of the experimental group. Moreover, a significant difference was found between the mean scores of the pre and post test of the experimental group in favor of the post test. It was concluded that participants’ level of speaking performance significantly improved after receiving the explicit affective strategy instruction.

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Physical Self-Concept dan Body Mass Index: Hubungan dan Perbedaan berdasarkan Gender

Jurnal Terapan Ilmu Keolahragaan ◽

10.17509/jtikor.v4i2.19016 ◽

2019 ◽

Vol 4 (2) ◽

pp. 127-132

Author(s):

Iman Ermawan ◽

Jajat Jajat ◽

Nana Sutisna

Keyword(s):

High School ◽

Body Mass Index ◽

Correlation Coefficient ◽

Body Mass ◽

Significant Relationship ◽

T Test ◽

Self Concept ◽

Men And Women ◽

Significant Difference ◽

The Relationship

Penelitian ini bertujuan untuk mengkaji hubungan antara Physical Self-Concept (PSC)dengan Body Mass Index (BMI)serta perbedaan PSC dan BMI berdasarkan gender. Metode yang digunakan pada penelitian ini adalah assosiasonal (correlational dan kausal-komparatif). Sample berjumlah 59 orang siswa remaja SMA di Kabupaten Ciamis. Instrument yang digunakan untuk mengukur PSC adalah Physical Self Description Questionnaire (PSDQ). Untuk menguji hubungan antara PSC dan BMI digunakan koefisien korelasi, dan untuk uji beda digunakan independent sample t-test. Hasil pengolahan dan analisis menunjukan bahwa, (1) tidak ada hubungan yang signifikan antara PSC dan BMI (p 0.05); (2) tidak terdapat perbedaan BMI yang signifikan antara laki-laki dan perempuan (p 0.05); (3) terdapat perbedaan PSC yang signifikan antara laki-laki dan perempuan (p 0.05).This study aims to examine the relationship between Physical Self-Concept (PSC) and Body Mass Index (BMI) and differences in PSC and BMI based on gender. The method used in this study is associational (correlational and causal-comparative). Sample amounted to 59 high school teenagers in Ciamis Regency. The instrument used to measure PSC is Physical Self Description Questionnaire (PSDQ). To test the relationship between PSC and BMI used the correlation coefficient, and for the different tests used independent sample t-test. The results of processing and analysis show that, (1) there is no significant relationship between PSC and BMI (p 0.05); (2) there was no significant difference in BMI between men and women (p 0.05); (3) there are significant differences in PSC between men and women (p 0.05).

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Validity and reliability of badminton-specific Reactive Agility TestBadmintona özgü geliştirilen Reaktif Çeviklik Testinin geçerlik ve güvenirliği

Journal of Human Sciences ◽

10.14687/jhs.v15i1.5211 ◽

2018 ◽

Vol 15 (1) ◽

pp. 594

Author(s):

Mehmet Yıldız ◽

Uğur Fidan

Keyword(s):

Correlation Coefficient ◽

Intraclass Correlation Coefficient ◽

Linear Regression Analysis ◽

Intraclass Correlation ◽

T Test ◽

Validity And Reliability ◽

Test Protocol ◽

Significant Difference ◽

Reactive Agility ◽

The Difference

Many laboratory and field tests are used in the literature to measure agility. The aim of the present study was to investigate the reliability and validity of a new Reactive Agility Test developed for badminton. A total of fourty male [ 20 elites (age: 20.8 ± 2.98 year, height: 174.55 ± 12.03 cm, weight: 65.70 ± 14.41 kg) and 20 sub-elites (age: 22.20±1,51, height: 170.01 ± 05.80 cm, weight: 62.45 ± 6,45 kg)] badminton players took part in the present study. For validity, the difference and relationship between newly developed reactive agility and planned changing direction tests in terms of elit and sub-elit players was examined. In the reliability measurements of test-retest, The Reactive Agility Test at same route was performed twice. Independent sample t test was carried out in order to detect the difference among the groups in the search for validity. The identification of the relations between the two different tests was performed with linear regression analysis. The reliability of test-retest was tried to be estimated with the coefficient of variances and intraclass correlation coefficient, and the Bland Altman method. In addition, a systematic difference between the test and the retest was estimated with the paired t test. At the end of the study, while there was not a significant difference found in the rates of planned changing direction of the elit and sub-elit players, it was detected that reactive agility rates were better in the elit players (7.14±4.85 sec and 9.87±5.07 sec, respectively). Moreover, a high coefficient determination was revealed between two tests (r2: 0.63, p<0.01). In the comparison of test-retest, a high intraclass correlation coefficient (0.930) and a very low coefficient of variances (4.7) were found. Furthermore, it was observed in the Bland Altman graph that a 95% of concordance range of the data obtained between two measurements was a good and narrow concordance. In conclusion, it was determined that the new developed badminton specific Reactive Agility Test is a valid and reliable measurement method and it is suggested that this test protocol can be used to enhance and monitor reactive agility ability of badminton players.Extended English summary is in the end of Full Text PDF (TURKISH) file. ÖzetLiteratürde çevikliğin ölçülmesi amacıyla birçok laboratuvar ve saha testi kullanılmaktadır. Bu çalışmanın amacı badminton sporuna göre düzenlenmiş Reaktif Çeviklik Testinin güvenirlik ve geçerliğinin araştırılmasıdır. Araştırmaya toplam kırk erkek [20 elit (yaş: 20,8±2,98 yıl, boy uzunluğu: 174,55±12,03 cm, vücut ağırlığı:65,70±14,41 kg) ve 20 sub-elit (yaş: 22,20±1,51 yıl, boy uzunluğu: 170,01±05,80 cm, vücut ağırlığı:62,45±6,45 kg)] badminton oyuncusu katılmıştır. Geçerlik için yeni geliştirilen reaktif çeviklik ile planlı yön değiştirme testlerinin elit ve sub-elit katılımcılar arasındaki istatistiksel karşılaştırması ve ilişkisi analiz edilmiştir. Test-tekrar test güvenirlik ölçümlerinde aynı rotadaki reaktif çeviklik testi birer gün arayla iki kez uygulanmıştır. Geçerlik çalışmasında gruplar arası farkın belirlenmesi için bağımsız değişken t testi ve testler arası ilişkinin fonksiyonel olarak açıklanması ve bu ilişkinin bir modelle tanımlanması için basit doğrusal regresyon analizi yapılmıştır. Test-tekrar test güvenirliği varyasyon katsayısı, sınıf içi korelasyon katsayısı ve Bland Altman metodu ile kestirim edilmiştir. Ayrıca test- tekrar test arasında sistematik bir farkın olup olmadığı eşleştirilmiş t testi ile sınanmıştır. Çalışma sonunda elit ve sub-elit oyuncuların planlı yön değiştirme bulguları anlamlı bir fark bulunmazken, reaktif çeviklik derecelerinin elit oyuncularda istatistiksel olarak anlamlı farklı (sırasıyla 7,14±4.85 sn ve 9,87±5,07 sn) şekilde düşük olduğu tespit edilmiştir. Bununla beraber her iki test arasında yüksek düzeyde bir açıklayıcılık katsayısı tespit (r2: 0,63, p<0.01) edilmiştir. Test- tekrar test karşılaştırılmasında yüksek bir sınıf içi korelasyon katsayısı (0,930) ve çok düşük varyasyon katsayısı (4,7) belirlenmiştir. Ayrıca Bland-Altman grafiğinde iki ölçüm arasında elde edilen tüm verilerin %95 uyum aralığının dar ve iyi bir uyum gösterdiği gözlenmiştir. Sonuç olarak, badminton sporuna göre düzenlenmiş Reaktif Çeviklik Testinin geçerli ve güvenilir bir ölçüm yöntemi olduğu tespit edilmiştir ve badminton oyuncularının reaktif çeviklik becerilerinin geliştirilmesinde ve gelişimlerinin takibinde kullanılabileceği önerilmektedir.

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THE USE OF CARTOON “FROZEN” MOVIE AS VISUAL MEDIA TO IMPROVE THE STUDENTS’ ABILITY IN LEARNING SPEAKING: A CASE OF NINTH GRADE STUDENTS OF SMP SULTAN AGUNG 1 SEMARANG

ETERNAL (English Teaching Journal) ◽

10.26877/eternal.v4i1.1950 ◽

2017 ◽

Vol 4 (1) ◽

Author(s):

Dyah Nugrahani ◽

Fitria Fitria

Keyword(s):

Ninth Grade ◽

T Test ◽

Control Group ◽

Significant Difference ◽

Research Findings ◽

The Mean ◽

The Difference ◽

Ninth Grade Students ◽

Teaching Learning ◽

Experimental Group

The objectives of this study are (1) to find out the speaking ability of students in grade 9th of SMP SultanAgung 1 taught without using Cartoon “frozen” movie. (2) to find out the speaking ability of students in grade 9th of SMP Sultan Agung 1 taught with cartoon “frozen” movie. (3) to know the difference in speaking ability of students in grade 9thin SMP Sultan Agung 1 taught with and without using cartoon “frozen” as Media.This study investigates the speaking ability of the students taught using cartoon “frozen” movie as media, the speaking ability of the students taught without using cartoon “frozen” movie as media, whether or not there is significant difference of speaking ability between the students taught using cartoon “frozen” movie and those taught without cartoon “frozen” as media..This study, belongs to experimental quantitative method. The population of the study was ninth grade students of SMP Sultan Agung 1 Semarang. In this study, purposive sampling has been used to take the samples. The samples were 9A as experimental group, and 9E as control group. Then, the instruments of this study were test and document.It was found that the mean of experimental group was 72.53. Meanwhile, the mean of control group was 60.67. The mean of experimental group was higher than the mean of control group. So, it found that there was significant difference of the speaking ability between the students taught using cartoon “frozen” movie and those taught without using cartoon “frozen” movie as media.From the research findings, it can be concluded that since the use of cartoon “frozen” movie as modelin teaching speaking , the students were more interested in teaching learning process. It was proven based on the computation. The result of t-test was3.71 and t-table was 2.00. So the value of t-test was higher than t-table (3.71>2.00).It concludes that using cartoon “frozen” movie as media can promote students speaking ability. Based on the conclusion, some suggestions were proposed for the teacher and the students. The teacher can use cartoon “frozen” movie as media for teaching speaking. The students can use cartoon “frozen” movie to enhance the understanding of the content information, and to promote their speaking ability.

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Comparisons of Proximal Vergence Measures

Vision Development & Rehabilitation ◽

10.31707/vdr2020.6.3.p252 ◽

2020 ◽

pp. 252-263

Keyword(s):

Eye Movement ◽

Refractive Error ◽

Measurement Method ◽

Clinical Utility ◽

T Test ◽

Significant Difference ◽

The Mean ◽

The Difference ◽

Paired T Test ◽

Vergence Eye Movement

Background: Proximal vergence is defined as a vergence eye movement subtype driven by an “awareness of nearness”. The purpose of this experiment was to compare values of proximal vergence calculated with and without measures of accommodation to assess the clinical utility of each measurement method. Methods: Thirteen participants between the ages of 22 and 37 (mean = 28.5 ± 4.5 years) were enrolled. The distance and near heterophoria were measured using the Modified Thorington technique. The near heterophoria was measured under three randomized viewing conditions (no lenses, +1.00D lenses, +2.50D lenses). Refractive error was measured with an autorefractor. Proximal vergence was calculated as the difference in calculated (far-near) and gradient (+1.00) stimulus AC/A ratios (stimulus AC/A differencing method), the difference in calculated and gradient response AC/A ratios (response AC/A differencing method), and the change in vergence from distance to near with the +2.50D lenses (uncorrected +2.50D method). This latter value was also corrected for any active accommodation with +2.50D lenses (corrected +2.50D method). Results: The mean proximal vergence values (Δ) were 7.82 ± 5.98 (stimulus AC/A differencing method), 8.29 ± 3.30 (response AC/A differencing method), 6.23 ± 3.52 (uncorrected +2.50D method), and 5.13 ± 2.98 (corrected +2.50D method). The only comparison that showed both a significant correlation (p<0.05) and a non-significant difference from the paired t-test (p>0.05) was that between the stimulus AC/A differencing method and the uncorrected +2.50D method. Conclusions: When response accommodation was accounted for, differences occurred in the mean proximal values obtained with the various methods. The means of the methods most likely to be used clinically (stimulus AC/A differencing method and uncorrected +2.50D method) were similar, although some individuals demonstrated significant differences between these methods.

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Effect of Wallpass Exercise With Groups Of 4 Improving Passing Results Bali United Mataram

MAENPO ◽

10.35194/jm.v11i1.1219 ◽

2021 ◽

Vol 11 (1) ◽

pp. 68

Author(s):

Soemardiawan Soemardiawan ◽

Nurdin Nurdin

Keyword(s):

Research Design ◽

Test Data ◽

Research Data ◽

T Test ◽

Significant Difference ◽

Post Test ◽

The Mean ◽

The Difference ◽

Group 2 ◽

Group 1

Football is a sport that is played outside the room of 11 players with the aim of getting the ball into the opponent's goal. The results of observations in the field that there are still many players in passing while competing so that it is not in accordance with the target. The formulation of the problem in this study is whether there is an effect of wallpass training and exercise with groups of 4 to increase the passing results of Bali United Mataram. The purpose of this research is to find out. The research design was a twogroup pretest-postest design. Population and sample are all players totaling 22 people. Instrument Passing for 30 seconds. The research data were analyzed using SPSS version 22. The results of the t-test for group 1 obtained significant values (2-tailed) <0.05: 0.003 <0.05 and group 2 significant values (2-tailed) <0.05: 0.038 <0,05. So these results indicate a significant difference. Based on the test for the difference in the mean post-test data for groups 1 and 2, it was obtained a significant value (2-tailed) <0.05: 0.026 <0.05 with an increase in the percentage value in group 1 of 12.93% and group 2 of 3, 96%. Based on the results of the analysis, it can be concluded that the effect of wallpass training and exercise with groups of 4 is an increase in the passing results of Bali United Mataram in 2021.Keywords: Passing, Wallpass, with groups of 4

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KOMPARASI RISK DAN RETURN SAHAM DAN SAHAM SYARIAH

Mabsya: Jurnal Manajemen Bisnis Syariah ◽

10.24090/mabsya.v2i1.3862 ◽

2020 ◽

Vol 2 (1) ◽

pp. 79-96

Author(s):

Abil Finda Farrukhy

Keyword(s):

Stock Exchange ◽

Descriptive Analysis ◽

Secondary Data ◽

T Test ◽

Risk Level ◽

Average Return ◽

Significant Difference ◽

The Mean ◽

Inferential Analysis ◽

The Difference

Abstract This research aims to identify the difference in the mean return and risk of regular and sharia stock listed on the Indonesia Stock Exchange as a provider of secondary data listed in the consumer goods industry in the 2019 period. The data analysis techniques in this research are using descriptive and inferential statistics analysis. The results of descriptive analysis within 1 year showed that the average return of regular stock is -0.0018342 or -0.18% while the average return of Sharia stock 0,0009238 or 0.09%. The risk level of regular stock during the period of 1 year is 0.0539309 or 5.39%. while the risk level of sharia stock is 0.0142570 or 1.43%. Based on the results of inferential analysis research using a different test (Independent Sample t-test), obtained result that there is no significant difference between return and risk of regular stock and Sharia stock. Keywords: Return, Risk, Regular Stock, Sharia Stock Abstrak Penelitian ini bertujuan untuk mengidentifikasi perbedaan rata-rata return dan risk saham reguler dan saham syariah yang tercatat pada Bursa Efek Indonesia sebagai penyedia data sekunder yang tercantum di bidang industri barang konsumsi periode 2019. Teknik analisis data penelitian ini menggunakan analisis statistik deskriptif dan inferensial. Hasil analisis deskriptif pada kurun waktu 1 tahun menyatakan bahwa rata-rata return saham reguler senilai -0,0018342, sedangkan rata-rata return saham syariah senilai 0,0009238. Tingkat Risk saham reguler selama kurun waktu 1 tahun senilai 0,0539309, sedangkan tingkat risk saham syariah senilai 0,0142570. Berdasarkan hasil penelitian analisis inferensial dengan menggunakan uji beda (Independent Sample t-test) dihasilkan bahwa tidak ditemukan perbedaan signifikan antara return dan risk saham reguler dengan saham syariah. Kata Kunci: Return, Risk, Saham Reguler, Saham Syariah

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Self Concept of Aids Positive & Negative Tribal and Non Tribal Women

International Journal of Indian Psychology ◽

10.25215/0102.008 ◽

2014 ◽

Vol 1 (2) ◽

Author(s):

Ankit P. Patel

Keyword(s):

Mental Health ◽

Local Area ◽

T Test ◽

Self Concept ◽

Civil Hospital ◽

Tribal Women ◽

Significant Difference ◽

The Difference

The presents study was held in area of PANCHMAHAL district. Aim of the study is to measure the difference of AIDS positive & negative tribal and non tribal women, about self concept. 80 women were selected randomly from Godhra’ Civil hospital and Local area. In which 20 tribal and 20 non tribal from AIDS positive and tribal and 20 non tribal AIDS negative women. For present study “MENTAL HEALTH BATTERY” (MHB) of Arunkumar Singh and Alpna Sen Gupta was used. From this battery only 15 items were selected (related to self concept) for the research. For this comparison’s t test was used. Result is that there is a no significant difference in self concept of women.

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The Use of Learning Logs Strategy in Improving Students’ Ability in Writing Expository Paragraph

Lectura Jurnal Pendidikan ◽

10.31849/lectura.v10i2.3167 ◽

2019 ◽

Vol 10 (2) ◽

pp. 198-211

Author(s):

Agung Prasetyo Wibowo ◽

Vonnysa Febrinda

Keyword(s):

Learning Strategies ◽

T Test ◽

Teaching Writing ◽

First Year ◽

First Year Students ◽

Significant Difference ◽

Post Test ◽

The Mean ◽

The Difference ◽

Learning Logs

To see the difference in students' ability in writing expository paragraphs, this research uses a comparison between log learning and conventional learning strategies. Using true-experimental research, there were pre-test, treatment, and post-test. The subject of this research was the first-year students of State Senior High School 1 Selatpanjang, Meranti Island Regency. Two classes were deployed; an experimental and a control class with total of 47 students. The researchers used cluster random sampling, based on the group. In collecting data, the researchers used a test and an observation list. In assessing students’ writing, the researchers invited two raters, those who are qualified and considered as experts in teaching writing. The researchers analyzed the data by using t-test formula. The result shows that the mean score of students’ post-test in the control class was 65,5. Meanwhile, the mean score of students’ post-test in experimental class was 73,4. The result of t test sees a significant difference between students’ ability in writing expository paragraphs by using Learning Logs Strategy and those using Conventional Strategy (5.26). This result was higher than t table significant 5% (2,02) and 1% (2,69). H0 was rejected and Ha was accepted. It means that there was a significant difference in students’ ability in writing an expository paragraph using Conventional Strategy and using Learning Logs Strategy.

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