Regression Coefficient Test Research Articles

Confirmatory Study on Prediction of Maximal Oxygen Uptake by Ensemble Learning Algorithm

Objective: The prediction model of maximal oxygen uptake (VO2max) was established by different ensemble learning methods. Compared with multiple linear regression, a common prediction method of VO2max, the effectiveness of the ensemble learning model is verified, and screen out the optimal VO2max prediction model. Methods: A total of 84 male college students, were recruited, informed of the purpose and procedure of the experiment, and passed the PAR-Q questionnaire screening. Cardiopulmonary Exercise Test (CPET), lung function, body composition test, VO2max, minute ventilation volume (VE), tidal volume (Vt), weight, and other related indicators. After the correlation analysis of the experimental results, a VO2max multiple linear regression model and an ensemble learning prediction model are computed. Results: The indicators that finally enter the multiple linear regression equation include: weight, Vt, VE. The regression equation is: VO2max (ml/kg/min) = 52.455+0.005×VT (ml/min) + 0.111×VE (L/min)-0.441×weight (kg), and the regression coefficient test results is extremely significant (P<0.01). The VO2max prediction model is computed by using the ensemble learning algorithm and among the five prediction models, it is found that Weighted average (R^2=0.7715) has the best effect, and higher than multiple regression model, there is no significant difference between the actual value and the predicted value VO2max (P>0.05). Conclusion: In the case of a small sample size, the weighted average model predicts VO2max the most accurately, compared with multiple regression models, the ensemble learning model can include more basic indicators, the evaluation of VO2max in the body is more comprehensive, and the prediction results are more accurate.

A cross-sectional asset pricing test of model validity

ABSTRACT An out-of-sample cross-sectional regression coefficient test of alpha in asset pricing models is investigated. The test is straightforward, easy to implement, supported by statistical precedent in the literature, applicable to linear and nonlinear models, and supplements in-sample GRS alpha tests of average pricing errors. Using U.S. stock returns, consistent with model misspecification, we find that the CAPM as well as prominent multifactor models have significant alpha coefficients in cross-sectional regressions. We conclude that the cross-sectional distribution of alphas across test assets contains useful information about model validity.

Pengaruh Attention, Interest, Desire dan Action Terhadap Keputusan Pembelian Sepeda Motor Merek Honda pada PT. Capella Dinamik Nusantara Takengon Kabupaten Aceh Tengah

The purpose of this study was to determine the effect of attention, interest, desire, and action on purchasing decisions for Honda brand motorcycles. The population in this study was 320 people and the sample in this study was 76 people calculated using the Slovin formula as consumers of PT. Capella Dinamik Nusantara Takengon. The data analysis method was in the form of validation tests and reliability tests and using classical assumption tests, then re-analyzed using multiple linear regression, hypothesis testing and determination coefficient tests. The results showed that the variables attention, interest, desire and action, the four variables partially had a significant effect on purchasing decisions. All independent variables had a simultaneous and significant effect on purchasing decisions for Honda brand motorcycles at PT. Capella Dinamik Nusantara Takengon, Central Aceh Regency.

Projection tests for regression coefficients in high-dimensional partial linear models

. To check the significance of the regression coefficients in the linear component of high-dimensional partial linear models, we proposed some projection-based test statistics. These test statistics are connected with U-statistics of order two and they are applicable for diverging dimensions and heteroscedastic model errors. By using the martingale central limit theorem, we show the asymptotic normalities of the proposed test statistics under the null hypothesis and local alternative hypotheses. The performance of test statistics are evaluated by simulation studies. The simulation results show that the proposed test statistics are powerful and have the correct type-I error asymptotically under the null hypothesis.

Pemanfaatan Aplikasi Tiktok sebagai Media Dakwah Oleh Ustadzah Oki Setiana Dewi

With current developments, everyone can access information via the internet. One of them is by using social media in everyday life, namely the TikTok application. Ustadzah Oki SetianaDewi uses TikTok to preach by producing content that follows current viral trends. His preaching style is characterized by his soft speech, simple but easy to understand and understand, and interesting. The video content presented by Ustadzah Oki Setiana Dewi can attract the attention of the public, especially youth so that it can improve moral quality in accordance with Islamic teachings. This research aims to find out Ustadzah Oki Setiana Dewi in using the TikTok application as a medium for preaching to encourage people to do good things in accordance with the commands of Allah SWT. As a result of this research, researchers used descriptive analysis, and the results of this research also used regression test variables, coefficient tests, multiple linear, correlation and determination. Because the results of this research show a high level on Ustadzah Oki Setiana Dewi's TikTok account, which currently has 1.9 million followers, 28.2 million likes and 1403 videos. Therefore, Ustadzah Oki Setiana Dewi's TikTok account provides many benefits and good examples for her followers. In this way, many people apply the good things conveyed by Ustadzah Oki Setiana Dewi.

PENGARUH LEADER MEMBER EXCHANGE (LMX), DISIPLIN KERJA, DAN MOTIVASI KERJA TERHADAP LOYALITAS PEGAWAI LPP RRI MADIUN

"This research was conducted to partially and simultaneously observe whether leader member exchange, work discipline, and work motivation influence the loyalty of employees at LPP RRI Madiun. This is because in today's digital era, the role of radio has started to lag behind other mass media. In order to remain competitive, employee loyalty in the company must be improved to achieve this goal. The population in this study is all employees of LPP RRI Madiun, totaling 64 employees. The technique uses a nonprobability sampling method with a saturated sampling technique (census). The data source applies primary data through the use of a questionnaire instrument. The testing of data quality analysis applies validity and reliability tests. The testing of constant and unbiased regression results applies the classic assumption test. Hypothesis testing applies the partial regression coefficient test (t-test) and simultaneously (f-test). It can be concluded that the partial test (t) consisting of independent variables Leader Member Exchange (X1) = 3.019, Work Discipline (X2) = 4.412, Work Motivation (X3) = 3.243, simultaneously (f), the three independent variables simultaneously influence Employee Loyalty (Y) by 103.725. This research proves that leader member exchange, work discipline, and work motivation are significant factors influencing employee loyalty. Of the three independent variables, work discipline has the greatest influence on employee loyalty, followed by work motivation and leader member exchange. Therefore, the researcher recommends that leaders and employees improve the quality of work relationships, discipline, and work motivation to create high employee loyalty.

The Effect of Inflation Rate and Gold Price on Gold Pawn Financing (Rahn) at PT Bank BSI Indonesia

Gold pawn financing can be interpreted as pawning or surrendering physical authority over property/valuables from customers to banks to be managed with the ar-rahn principle, namely as collateral for loans/debts given to customers/borrowers. The purpose of this study was to determine the effect of inflation rate and gold price on the distribution of Rahn financing at PT Bank Syariah Indonesia. The data for this research comes from the official website of Bank Indonesia, PT Antam Indonesia and PT Bank Syariah Indonesia. The data taken is a monthly report. Hypothesis testing using multiple linear regression analysis and data processing tools with the SPSS 21 application. The results of data analysis show that partially the inflation rate does not have a significant effect on the distribution of Rahn Financing of PT Bank Syariah Indonesia with a t value of -2.03 and a significant value of 0.051, and gold price fluctuations affect the distribution of Rahn Financing of PT Bank Syariah Indonesia with a t value of 7.811 and a significant value of 0.000. Simultaneously the inflation rate and gold price affect the distribution of Rahn Financing of PT Bank Syariah Indonesia with an F value of 30.81 and a significance of 0.000 and can be seen from the regression coefficient test (R2) the inflation rate and gold price fluctuations affect the distribution of Rahn Financing of PT Bank Syariah Indonesia by 64.4% and the remaining 35.6% is influenced by other factors outside the research model.

Pengaruh Kepemimpinan Kepala Sekolah dan Motivasi Guru Terhadap Prestasi Peserta Didik di Kecamatan Kuta Cot Glie Kabupaten Aceh Besar

The aim of this research is to determine the influence of academic supervision and managerial leadership of school principals on the work motivation of elementary school teachers in Kuta Cot Glie District, Aceh Besar Regency. This research uses survey research methods. Hypothesis testing uses simple linear regression analysis, multiple linear regression analysis, multiple correlation analysis (R), determination analysis (R2), and combined regression coefficient test (F test). The results of the research are that there is a significant influence between academic supervision on teacher work motivation in Kuta Cot Glie District, Aceh Besar Regency; there is a significant influence between the managerial leadership of school principals on teacher work motivation in Kuta Cot Glie District, Aceh Besar Regency; there is a significant influence between the principal's academic supervision and managerial leadership on teacher work motivation at the State Elementary School, Indrapuri District, Aceh Besar Regency; The contribution of academic supervision to teacher work motivation was 38.8%; the contribution of the principal's managerial influence to teacher work motivation was 51.3%; The contribution of the influence of Principal Leadership and School Teacher Work Motivation on Student Learning Achievement is 57.8%

Pengaruh Supervisi Akademik dan Manajerial Kepemimpinan Kepala Sekolah Terhadap Motivasi Kerja Guru di Gugus 25 SDN 2 Mata Ie Kabupaten Aceh Besar

The purpose of this study is to determine the influence of academic and managerial supervision of the principal's leadership on the work motivation of elementary school teachers in the SDN 25 Mata Ie Cluster, Aceh Besar Regency. This study used survey research method. The population in this study amounted to 73 primary school teachers. Data collection techniques using questionnaires. Hypothesis testing using simple linear regression analysis test, multiple linear regression analysis, multiple correlation analysis (R), determination analysis (R2), and regression coefficient test together (Test F). The results of the research are that there is a significant influence between academic supervision on teacher work motivation in the SDN 25 Mata Ie cluster, Aceh Besar Regency; There is a significant influence between the principal's managerial leadership on the work motivation of teachers in the 25 Mata Ie State Elementary School Cluster, Aceh Besar Regency; There is a significant influence between the principal's academic supervision and managerial leadership on teacher work motivation in the SDN 25 Cluster, Aceh Besar Regency; The contribution of academic supervision to teacher work motivation is 38.8%; The contribution of the principal's managerial influence to teacher work motivation is 51.3%; The magnitude of the contribution of the influence of the principal's academic supervision and managerial leadership on teacher work motivation is 57.8%.

Correlation Between a Deficiency of D3 Levels and the Development of Allergic Rhinitis.

&lt;b&gt;Background and Objective:&lt;/b&gt; Allergic rhinitis (AR) is a common disorder characterized by sneezing, runny nose, nasal congestion and lacrimation, which negatively affects the quality of life to a large extent. The study aimed to find a link between the effect of vitamin D3 levels on Immunoglobulin (IgE) levels in patients with allergic AR. &lt;b&gt;Materials and Methods:&lt;/b&gt; This study included 30 patients with AR, with ages ranging from 18 to 35, of both sexes. For vitamin D levels, &lt;u&gt;>&lt;/u&gt;30 ng/mL is considered sufficient and &lt;u&gt;<&lt;/u&gt;20 ng/mL is a deficiency. The second group includes 30 people with adequate levels of vitamin D3 as a control group. All results were analyzed statistically by ANOVA, in addition to using the regression coefficient test to test the extent of the effect of D3 on the development of allergic rhinitis at a significant level of p&lt;u&gt;<&lt;/u&gt;0.05 using the SPSS program 24. &lt;b&gt;Results:&lt;/b&gt; The results showed a significant decrease in the levels of vitamin D3 in the serum of the AR patients compared with the control group and a substantial increase in the levels of IgE in the serum of the AR patients compared with the control group at a significant level of p&lt;u&gt;<&lt;/u&gt;0.05. Additionally, the results showed in the regression coefficient an inverse and significant effect of vitamin D3 concentration on serum IgE levels, which is significant in terms of the p-value, which appeared equal to 0.010. By observing the value of the R&lt;sup&gt;2&lt;/sup&gt; coefficient of determination, it is clear that a change in the concentration of vitamin D3 causes 58% of the changes in IgE levels. &lt;b&gt;Conclusion:&lt;/b&gt; Through linear regression correlation, an inverse linear relationship emerged linking low vitamin D3 levels to increased IgE levels with an effect rate of 58%.

PENGARUH FAKTOR INTERNAL DAN EKSTERNAL TERHADAP HARGA SAHAM PADA SUBSEKTOR BATU BARA YANG TERDAFTAR DI BURSA EFEK INDONESIA (BEI) TAHUN 2018-2022

This research was conducted with the aim of knowing the description and influence of Return on Assets, Earning Pershare, Price Earning Ratio, Exchange Rates and Inflation on the share prices of the coal subsector listed on the Indonesia Stock Exchange (BEI) for 2018-2022. The research method used in this research is quantitative analysis with descriptive and verification methods to determine the description of internal factors (Return on Assets, Earning Pershare, Price Earning Ratio). This research uses secondary data in the form of annual reports from each company, with a sample size of 23 companies and 115 financial reports using non-probability sampling techniques, purposive sampling. Data testing techniques are carried out using classical assumption tests, multiple linear regression coefficient tests, coefficient of determination tests, and hypothesis tests. Based on the results of research using the determination test, it was found that the Return on Assets variable had an effect on stock prices by 3.7%, the Earning Pershare variable had an effect on stock prices by 8.6%, while the Price Earning Ratio variable had an effect on stock prices by 0.6%, The exchange rate variable has an effect on stock prices by 2.2% and the inflation variable has an effect on stock prices by 1%. The verification results found that the variable Return on Assets had an effect on stock prices, Earning Pershare had an effect on stock prices, Price Earning Ratio had no effect on stock prices, Exchange Rates had no effect on stock prices, Inflation had no effect on stock prices and the Variables Return on Assets, Earnings Pershare, Price Earning Ratio, Exchange Rate and Inflation were simultaneously found to have a significant influence on share prices.

The Innovative Path of Patriotism Education for College Students in the New Era under the Environment of Intelligent Education

Abstract This paper combines modern information technology with the design of mobile Internet smart classrooms and its realization. Using the structural equation model to summarize and refine the key elements of college smart patriotic teaching, the college smart patriotic teaching practice model is proposed, and the quantitative information of each influence path is explored through empirical evidence. After analysis, it can be seen that in the first and second standardized regression coefficient tests, the path coefficient of the wisdom patriotic teaching method on the environment of wisdom patriotic teaching in colleges and universities is 1.138, P=0.262. In addition to this, the other nine influence path hypotheses passed the significance test (P&lt;0.05). In terms of the path coefficient of each path, the highest value reaches 0.58, and the lowest value to -0.14, revealing that the main development of college students’ patriotism is also affected by the diversified and rich influence of various other complex factors. The wisdom patriotic teaching model is highly rated by college students and has a significant difference in satisfaction between different academic degrees (P=0.008). Data support for the innovative path of patriotic education in a smart environment is provided by the findings of this paper.

Students' Word of Mouth Electronic Conversation Formation Model Through Online Service Quality and Students' Online Satisfaction

This study seeks to investigate the impact of E-Service Quality, E-Satisfaction, and the interaction between E-Service Quality and E-Satisfaction on the formation of E-Student Word of Mouth within the Management Study Program at the Faculty of Economics and Business, Ahmad Dahlan University in Yogyakarta. The sample selection involved a combination of convenience sampling and purposive sampling methods. Data collection was accomplished by distributing questionnaires to respondents, addressing aspects of E-Service Quality, E-Satisfaction, and E-WOM. Moderator Regression Analysis (MRA) was employed as the analytical tool. Additionally, T-tests and F-tests were utilized to examine the hypotheses put forth. The results of the partial regression coefficient test using the T-test indicate that both E-Service Quality and E-Satisfaction, as well as their interaction, have a significant influence on E-Student Word of Mouth. Furthermore, the regression coefficient analysis through the F-test demonstrates that the variables E-Service Quality, E-Satisfaction, and their interaction also collectively contribute to the influence on E-WOM. These variables - E-Service Quality, E-Satisfaction, and their interaction - can explain up to 85% of the variance in E-WOM, with the remaining 15% attributed to other variables not included in the research model.

Pengaruh Implementasi Anggaran Berbasis Kinerja terhadap Peningkatan Kinerja Pegawai Badan Usaha Milik Negara: Studi Kasus Pada Perusahaan Listrik Negara (PLN) Ranting Dolok Sanggul

In this research, the implementation of performance-based budgeting has a positive and significant impact on improving the performance of State-Owned Enterprises (BUMN) employees. The research method used is quantitative with a population of 51 employees and a sample of 25 people selected through purposive sampling. The results of the validity test show that all measuring instrument items on the variables of performance-based budget implementation and improving the performance of BUMN employees are valid. Apart from that, the data in this study is normally distributed and there is no heteroscedasticity in the regression model. The results of the regression coefficient test show that the implementation of performance-based budgeting has a positive effect on improving the performance of BUMN employees.

Evaluation Model of Supervision of Service Quality of The Final Paper in The Management Study Program, Faculty of Economics and Business, Ahmad Dahlan University

This research aimed to test influence between service quality, student satisfaction also interaction between service quality and student satisfaction in the building word of mouth communication. Research conducted by Department of Management, Faculty of Economics and Business, University Ahmad Dahlan. Sample categorized with sampling convenience method and purposive sampling. Data collection efforted by giving list of question to the respondent that is contains about service quality, student satisfaction and word of mouth communication. This research use Moderator Regression Analysis. In the other side, T test and F test are used to test asked hypothesis. The result of partially regression coefficient test with T test shows that service quality, student satisfaction, interaction between them influence significantly to word of mouth communication. In the other side coefficient regression test’s result shows that variables of service quality student’s satisfaction also interaction between them both influence to word of mouth communication. Variables of service quality and student’s satisfaction are able to explain word of mouth communication variable up to 78,2% and the rest is 21,8% caused by another variable that is not included in the research model

Employee Productivity Optimization through Training, Discipline, and Work Motivation

This research aims to determine the influence of job training, work discipline, and work motivation, either partially or simultaneously, on employee productivity at PT. Bank DKI, Permata Hijau Cluster. This study employs a quantitative method with a descriptive analysis approach through a survey. The population of this research consists of 212 employees at PT. Bank DKI, Permata Hijau Cluster, while the sample size is determined using Slovin's calculation, resulting in 139 respondents. The analysis techniques include validity test, reliability test, classical assumption test, linear regression analysis, coefficient test, determination test, and hypothesis test. The research findings indicate that job training, work discipline, and work motivation have a positive and significant impact on work productivity, as evidenced by the F-value of 58.063 &gt; F-table 2.67 and an Adjusted R Squared value of 55.4%. This implies that approximately 55.4% of the variation in work productivity can be explained by the combined effects of job training, work discipline, and work motivation.

Determinan Internet Financial Reporting pada Perusahaan Manufaktur di Bursa Efek Indonesia

The use of the internet in the era of revolution 4.0 currently affects the traditional form of information presentation for companies. Technological developments, especially the internet, create opportunities to expand information dissemination through company websites in the form of up-to-date information in order to reduce information asymmetry in a company. This research aims to provide transparency and accountability to company stakeholders, including investors, employees, auditors and customers. One of the impacts of the internet for accountants is the emergence of IFR or online-based financial information providers. Internet Financial Reporting causes financial reporting to be easily accessible to anyone and can be traced for accuracy for investors. Thus, it is necessary to know the determining factors that encourage why companies need to implement IFR as a medium of communication with investors. This study used a sample of 85 manufacturing companies listed on the Indonesia Stock Exchange from 2018 to 2021. The method used in this research is regression analysis, simple regression coefficient test (t test), and simultaneous regression test (F test) to find out what factors affect IFR. The variables used in this study are company size, profitability, liquidity, leverage, audit committee and audit quality. The results showed the variables that had a significant effect on IFR were company size and leverage of 0.000 and 0.031, while the variables of profitability, liquidity, audit committee and audit quality had no significant effect on internet financial reporting.

Analisis Pengaruh Zakat, Infaq Dan Sadaqah Terhadap Pertumbuhan Ekonomi Dengan Indeks Pembangunan Manusia Di Indonesia Sebagai Variabel Intervening

This research aims to determine Zakat, Infaq and Sadaqah on economic growth with the Human Development Index in Indonesia as an intervening variable. The method used in this research is quantitative, data collection is carried out by accessing reports that have been published by the Central Statistics Agency and the National Zakat Amil Agency. The data that has been obtained is then processed using Eviews 10 version. Based on the results of simultaneous regression coefficient test calculations (f test), it can be concluded that the variables Zakat (X1), Infaq and Sadaqah (X2) and the Human Development Index (Z) have a positive effect on economic growth (Y), namely the coefficient value is 60.34371 with a probability value of 0.00000 &lt; 0. And the coefficient of determination test (R2) is 0.554560, this shows that the variables Zakat, Infaq and Sadaqah have an influence on economic growth by 55.45% while the remaining 44.55% is influenced by other variables which are not included and not researched. in this research.

The Influence of the Role of the School Principal on the Performance of East Lembean District Junior High School Teachers

The background to this research is the reality that shows the low performance of junior high school teachers in East Lembean District. The role of the school principal is a factor that influences low teacher performance. This research uses a quantitative research approach and an ex post facto type of research. The research population was all elementary school teachers in East Lembean District, Minahasa Regency, totaling 75 teachers. The number of research samples is the same as the population. The analysis of this research includes normality test analysis, homogeneity test, linearity test, and multicollinearity test. Hypothesis tests include correlation tests, ANOVA tests, summary tests, and regression coefficient tests. The research results show that there is a positive influence of the role of the principal on teacher performance at 34.6%. Coaching is needed to improve the role of school principals so that teacher performance also increases.

ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI PRODUKSI KOPI DI KABUPATEN TABANAN

This study aims to determine the effect of capital, labor, land area variables on coffee production in Tabanan Regency. This type of research is a quantitative research, namely a study that aims to obtain evidence of a hypothesis. Data collection was carried out by means of interviews and questionnaires as well as direct observation. The sample used was 99 respondents with a simple random sampling technique (simple random sampling). In analyzing used multiple linear regression analysis techniques.The results showed that the partial regression coefficient test (t test) with α = 5% showed that the three variables (capital, labor and land area) had a positive and significant effect on coffee production in Tabanan Regency. The results of the F test with α = 5% show that together the variables of capital, labor and land area have a significant effect on coffee production in Tabanan Regency.