Regression Analysis
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2022 ◽  
Vol 2 (1) ◽  
pp. 22-33
Author(s):  
Ali Eryılmaz ◽  
Dilay Batum ◽  
Kemal Feyzi Ergin

Abstract. Every day, individuals can encounter events which cause them to check their wishes and impulses. They need to provide self-control in the face of these events. It is observed that psychotherapies aimed at increasing self-control are limited. Positive psychotherapy, which is a structural and analytical psychotherapeutic method, can expand our viewpoint on this subject. Structures in positive psychotherapy were examined in the context of using the balance model, coupled with the ability of self-control. The dependent variable of the research is self-control, the independent variable is positive psychotherapy structures. Of the 151 (52.6%) of the participants (52.6%) were women, 136 (47.4%) were men. The Personal Information Form, which was created by the researcher as a data collection tool, the self-control scales and Wiesbaden positive psychotherapy and family therapy inventory were used. Multiple regression analysis was performed during the analysis of the data. As a result of multiple regression analysis, primary abilities (r = .51, r2 = .26; f = 11.840; p <.01), secondary abilities (r = .52, r2 = .27; f = 9.209; p <.01) and the balance model (r = .39, R2 = .15; f = 11.964; p <.01) significantly announced the self-control. According to the results of the analysis, patience, relationship, hope, and love are among the primary abilities; the secondary abilities are honesty, achievement, conformity and fairness. From the balance model, it was revealed that success and body were a significant predictor of self-control.


2022 ◽  
Vol 4 (3) ◽  
pp. 683-693
Author(s):  
Reni Ria Armayani Hasibuan ◽  
Anggi Kartika ◽  
Firdha Aigha Suwito ◽  
Lismaini Agustin

This study has the benefit of analyzing the effect of regional gross domestic product on poverty in the city of Medan in 2010-2020. The research method used is a quantitative method with reference to a descriptive approach. The data used is time series data on economic growth and poverty at the Central Statistics Agency (BPS) of Medan City in 2010-2020. Data collection techniques used are journals, book documentation, and previous reports. The technique of analyzing the data uses simple linear regression analysis which is carried out to determine whether the model used is free from deviations from the classical assumption test. The equations obtained from the simple linear regression analysis test Y = 24576.325 – 0.365X and have the understanding that the GRDP variable (X) has a significant effect on Poverty (Y). Obtained a value of R2 (R square) of 0.556 with the understanding that the independent variable, namely GRDP, affects the variable of the poverty level in Medan City by 55.6%. Meanwhile, the remaining 44.4% are influenced by different independent variables and are not included in this study. For this reason, it can be concluded that when GRDP increases, it will have an impact on decreasing the value of Poverty in Medan City, and vice versa. Keywords: Gross Regional Domestic Product; Poverty; Medan city


2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Antonio Salvi ◽  
Nicola Raimo ◽  
Felice Petruzzella ◽  
Filippo Vitolla

PurposeIn recent years, crowdfunding is assuming an increasingly central role in the development of business projects as an alternative financing tool to traditional sources. This study analyses the role of communication in the success of crowdfunding campaigns in the restaurant sector in the European context.Design/methodology/approachThis study conducts a regression analysis on a sample of 442 European restaurant crowdfunding projects launched on the Kickstarter platform in a time period spanning from 2014 to 2021. More specifically, this study uses a logistic regression model to test the impact of communication on the success of restaurant crowdfunding projects.FindingsEmpirical results suggest a strong impact of communication, declined in its different forms, on the success of restaurant crowdfunding campaigns. More specifically, they highlight a positive impact of the number of images, number of videos, readability and community orientation of the project description, number of comments and number of updates on the success of restaurant crowdfunding projects.Originality/valueTo the best of the authors’ knowledge, this study represents the first research that examines the effect of the communication on the success of restaurant crowdfunding projects conducted in the European context.


Author(s):  
Ayuto Kodama ◽  
Yu Kume ◽  
Sangyoon Lee ◽  
Hyuma Makizako ◽  
Hiroyuki Shimada ◽  
...  

Background: Recent longitudinal studies have reported proportion of frailty transition in older individuals during the COVID-19 pandemic. Our study aimed at clarifying the impact of social frailty in community-dwelling older adults during the COVID-19 pandemic and at identifying factors that can predict transition to social frailty. Methods: We performed this study from 2019 (before declaration of the state of emergency over the rising number of COVID-19 cases) to 2020 (after declaration of the emergency). We applied Makizako’s social frail index to our study subjects at the baseline and classified into robust, social prefrailty, and social frailty groups. Multiple logistic regression analysis was performed using robust, social prefrailty, or social frailty status as dependent variable. Results: Analysis by the Kruskal–Wallis test revealed significant differences in the score on the GDS-15 among the robust, social prefrailty, and social frailty groups (p < 0.05). Furthermore, multiple regression analysis identified a significant association between the social frailty status and the score on GDS-15 (odds ratio, 1.57; 95% confidence interval (95% CI), 1.15–2.13; p = 0.001). Conclusion: The increase in the rate of transition of elderly individuals to the social frailty group could have been related to the implementation of the stay-at-home order as part of the countermeasures for COVID-19. Furthermore, the increased prevalence of depressive symptoms associated with the stay-at-home order could also have influenced the increase in the prevalence of social frailty during the COVID-19 pandemic.


2022 ◽  
Vol 24 (1) ◽  
pp. 273-287
Author(s):  
Nikita R.Nikam ◽  
◽  
Yogita M. Kolekar ◽  

Some ancient medications were used to make the hair care herbal shampoo powder. Organoglytics, powder characteristics, foam test, and physical evaluation were performed on Tulsi, Shikakai, Heena, Bahera, Amla, Neem, and Brahmi. Existing inspections will assist set standards and assessment criteria, which will undoubtedly aid to standardise the quality and purity of these herbal powder shampoos, due to the selection of drugs once the drugs are used together or jointly. We optimise the formula with the help of the Design of Experiments as per the Quality by Design approach. This paper illustrates broad theoretical as well as practical view of advanced screening design. In addition to the statistical concept‟s regression analysis, parato chart, residual diagnosis, main effect plot, interaction effect plot, design space and multiple response prediction.


Author(s):  
Elizalde L. Piol ◽  
◽  
Luisito Lolong Lacatan ◽  
Jaime P. Pulumbarit

The use of Linear Regression in predicting enrolment has been shown to be beneficial, although it varies with various datasets and attributes; varying weights of the correlation of the attributes can be discarded if they do not impact the prediction. Data collecting had grown since prior investigations, resulting in a more complicated dataset with many varieties. As a result of the data being created by multiple clerks, cleaning and combining proved tough; nonetheless, the fundamental parameters remain intact. Different algorithms were examined but Linear Regression obtained the highest accuracy with a 12.398 percentage for the absolute error and a root mean squared of 26.936 to create a tangible model to anticipate the enrolment of Region IVA CALABARZON in the Philippines. This demonstrates that it was 2.067 percentage points more than the prior research.


2022 ◽  
Vol 4 (4) ◽  
pp. 1050-1068
Author(s):  
Imam Khulwani ◽  
Risal Rinofah ◽  
Pristin Prima Sari

This study aims to determine the effect of Regional Original Income, General Allocation Funds, Special Allocation Funds, partially and simultaneously effecting Capital Expenditures in Regencies/Cities in the Province of the Special Region of Yogyakarta (DIY) in 2016-2020. The type of research used is the type of quantitative research. Secondary data obtained from the website (http://www.djpk.kemenkeu.go.id). In this study, it was analyzed using descriptive analysis and multiple linear regression analysis and processed with SPSS version 25. The results of this study indicate that partially: the Regional Original Income (PAD) variable has a partial effect on Capital Expenditures in 4 regencies and 1 city in the Special Region of Yogyakarta (DIY), the General Allocation Fund (DAU) does not partially affect Capital Expenditures. , the Special Allocation Fund (DAK) has an effect on Capital Expenditures in 4 districts and 1 city in the Province of the Special Region of Yogyakarta (DIY). Meanwhile, simultaneously: Variables of Local Revenue (PAD), General Allocation Fund (DAU), Special Allocation Fund (DAK) simultaneously have a significant effect on Capital Expenditures in 4 districts and 1 city in the Special Region of Yogyakarta (DIY). ) with the period 2016-2020. Keywords: Regional Original Revenue, General Allocation Fund, Special Allocation Fund, Capital Expenditure.


2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Dandan Guo ◽  
Huifang Wang ◽  
Jun Liu ◽  
Hang Liu ◽  
Ming Zhang ◽  
...  

Abstract Background We aimed to develop and validate a nomogram model for predicting CKD after orthotopic liver transplantation (OLT). Methods The retrospective data of 399 patients who underwent transplantation and were followed in our centre were collected. They were randomly assigned to the training set (n = 293) and validation set (n = 106). Multivariable Cox regression analysis was performed in the training set to identify predictors of CKD. According to the Cox regression analysis results, a nomogram model was developed and validated. The renal function of recipients was monitored, and the long-term survival prognosis was assessed. Results The incidence of CKD at 5 years after OLT was 25.6%. Cox regression analysis identified several predictors of post-OLT CKD, including recipient age at surgery (HR 1.036, 95% CI 1.006-1.068; p = 0.018), female sex (HR 2.867, 95% CI 1.709-4.810; p < 0.001), preoperative hypertension (HR 1.670, 95% CI 0.962-2.898; p = 0.068), preoperative eGFR (HR 0.996, 95% CI 0.991-1.001; p = 0.143), uric acid at 3 months (HR 1.002, 95% CI 1.001-1.004; p = 0.028), haemoglobin at 3 months (HR 0.970, 95% CI 0.956-0.983; p < 0.001), and average concentration of cyclosporine A at 3 months (HR 1.002, 95% CI 1.001-1.003; p < 0.001). According to these parameters, a nomogram model for predicting CKD after OLT was constructed and validated. The C-indices were 0.75 and 0.80 in the training and validation sets. The calibration curve of the nomogram showed that the CKD probabilities predicted by the nomogram agreed with the observed probabilities at 1, 3, and 5 years after OLT (p > 0.05). Renal function declined slowly year by year, and there were significant differences between patients divided by these predictors. Kaplan-Meier survival analysis showed that the survival prognosis of recipients decreased significantly with the progression of renal function. Conclusions With excellent predictive abilities, the nomogram may be a simple and reliable tool to identify patients at high risk for CKD and poor long-term prognosis after OLT.


2022 ◽  
Vol 4 (3) ◽  
pp. 880-894
Author(s):  
Ana Marfuah ◽  
Kusuma Chandra Kirana ◽  
Didik Subiyanto

This research aims to determine the effect of competence and work ethic on work performance with motivation as a moderating variable. In this study using a population of all employees of PT. Sapta Sentosa Jaya Abadi Muko-Muko with a total of 70 respondents, the sampling technique used saturated sampling with questionnaires which were distributed to all employees of PT. Sapta Sentosa Jaya Abadi Muko-Muko. This research is a quantitative research. Data analysis techniques used in this research are descriptive analysis, multiple regression analysis, and Moderate Regression Analysis (MRA). The results of this study indicate that the competence variable has a positive and significant effect on work performance, the work ethic variable has a positive and significant effect on work performance, the motivation variable has a positive and significant effect on work performance, the motivation variable can moderate competence on work performance, The motivation variable cannot moderate work ethic on work performance Keywords: Motivation, Competence, Work Ethic, Work Performance


2022 ◽  
Vol 4 (3) ◽  
pp. 867-879
Author(s):  
Risal Rinofah ◽  
Pristin Prima Sari ◽  
Heni   Nur Amrina

The purpose of this study is to find out whether the effect of Market Value Added, Profitability, and Market Value Added on stock price. Sampling in this study is a purposive sampling method. Then the data is tested using multiple regression analysis. The results of the t test showed that the Economic Value Added has a signification value of 0,018 which means smaller than 0,05 and the calculated value of -2.441<t tablel 2.00758 then H1 is accepted. Profitability has a signification value of 0,034 greater than 0,05 and a calculated value of 2.182>t table 2.00758 then H2 is accepted, Market Value Added has significant  value of 0,223 greater than 0,05 and the value of t calculated -1.235<t table 2.00758 then H3 is rejected. The results of the F test showed that Economic Value Added, Profitability, Market Value Added have a calculated F value of 2,933 and sig. 0,042. Because the value F calculated 2.933>F table 2.773 and sig. value 0,042<0,05. It can be concluded that partially Economic Value Added has a significant negative effect on stock price, Profitability has a significant effect on stock price, Market Value Added has no significant effect on stock price and simultaneously Economic Value Added, Profitability, Market Value Added has a significant effect on stock price Keywords: Economic Value Added, Profitabilitas, Market Value Added, Stock Price


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