scholarly journals A graphical method of cumulative differences between two subpopulations

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Mark Tygert
Keyword(s):  
Traditional Method ◽  
Propensity Scores ◽  
Graphical Method ◽  
Probability Distributions ◽  
Statistical Significance ◽  
Average Score ◽  
Independent Variables ◽  
Dependent Variables ◽  
The Common ◽  
Discrete Values

AbstractComparing the differences in outcomes (that is, in “dependent variables”) between two subpopulations is often most informative when comparing outcomes only for individuals from the subpopulations who are similar according to “independent variables.” The independent variables are generally known as “scores,” as in propensity scores for matching or as in the probabilities predicted by statistical or machine-learned models, for example. If the outcomes are discrete, then some averaging is necessary to reduce the noise arising from the outcomes varying randomly over those discrete values in the observed data. The traditional method of averaging is to bin the data according to the scores and plot the average outcome in each bin against the average score in the bin. However, such binning can be rather arbitrary and yet greatly impacts the interpretation of displayed deviation between the subpopulations and assessment of its statistical significance. Fortunately, such binning is entirely unnecessary in plots of cumulative differences and in the associated scalar summary metrics that are analogous to the workhorse statistics of comparing probability distributions—those due to Kolmogorov and Smirnov and their refinements due to Kuiper. The present paper develops such cumulative methods for the common case in which no score of any member of the subpopulations being compared is exactly equal to the score of any other member of either subpopulation.

scholarly journals Does the Choice of Democracy Measure Matter? Comparisons between the Two Leading Democracy Indices, Freedom House and Polity IV

2013 ◽  
Vol 48 (2) ◽  
pp. 201-221 ◽  
Author(s):  
John Högström
Keyword(s):  
Comparative Studies ◽  
Statistical Significance ◽  
Explanatory Power ◽  
Empirical Results ◽  
Independent Variables ◽  
Dependent Variables ◽  
Freedom House

This article investigates whether two different measures of democracy generate the same empirical results. The Freedom House and Polity IV measures are used as the dependent variables. The result shows that statistical significance and explanatory power for different independent variables differ greatly, depending on which democracy index is used as the dependent variable. The results also indicate that Freedom House and Polity IV rate many countries’ levels of democracy differently. It is worrying and problematic for comparative studies of democracy that empirical results differ so much according to which measure of democracy is used.

scholarly journals Disparities among Greek Army Units due to Physical Training Instructor’s Competency Influencing the Organizational Efficiency of the Army Physical Training

2014 ◽  
Vol 7 (1) ◽  
pp. 65-72
Author(s):  
Vasiliki Kontodimaki ◽  
Costas Mountakis
Keyword(s):  
Physical Education ◽  
Physical Training ◽  
Wide Spectrum ◽  
Statistical Significance ◽  
Organizational Efficiency ◽  
Independent Variables ◽  
Dependent Variables ◽  
Different Types ◽  
Army Personnel ◽  
Survey Questionnaires

There has been no systematic measurement of the parameters affecting the organization’s efficiency of the physical training of the Hellenic Army’s Physical Training (APT). The purpose of this study was to evaluate the competency of the five different types of “Physical Training (PT) Instructor” within the Hellenic Army Units Training Cycles (HAUTCs), which influences the APT program’s organizational efficiency in the Hellenic Armed (HA) forces. Two thousands eight hundred sixty four (2864) survey questionnaires (5 point Likert type scale) were selected. Participants came from a wide spectrum of Greek Permanent Army Personnel in HA. Five (5) different types of the PT Instructors were tested, measured along three (3) dimensions (a) contribution to implementation, (b) frequency of implementation and (c) effectiveness/adequacy of implementation, which evaluate their competency in performance of APT programs (15 dependent variables). ΑΝΟVA and Bonferroni post comparisons were calculated for the total of the dependent variables among the three HAUTCs (A΄, Β΄ and C΄) (3 independent variables). The probability of statistical significance was set at p ≤ 0.05. The results showed that the “Officer” (OFC) contributes, applies and suffices the APT programs mainly in HAUTCs A΄ and B΄, whereas “Permanent Commissioned Officer” (PCOF) applies APT programs more often in HAUTC C΄. In HAUTCs B΄ and C΄ the “Physical Education Graduate” (PEG) seems more capable, efficient, and suitable when ordered to perform the PT programs. The results evaluated the duty of the PT Instructors’ competency according to HAUTCs’ requirements and introduce the necessity of its improvement in some cases.

scholarly journals “Cultural additivity” and how the values and norms of Confucianism, Buddhism, and Taoism co-exist, interact, and influence Vietnamese society: a Bayesian analysis of long-standing folktales, R / Stan

2018 ◽  
Author(s):  
Quan-Hoang Vuong ◽  
Tung Ho ◽  
Viet-Phuong La ◽  
Dam Van Nhue ◽  
Bui Quang Khiem ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Bayesian Analysis ◽  
Full Account ◽  
Empirical Results ◽  
Independent Variables ◽  
Religious Intolerance ◽  
Dependent Variables ◽  
Values And Beliefs ◽  
The Common ◽  
Bayesian Logistic Regression

Every year, the Vietnamese people reportedly burned about 50,000 tons of joss papers, which took the form of not only bank notes, but iPhones, cars, clothes, even housekeepers, in hope of pleasing the dead. The practice was mistakenly attributed to traditional Buddhist teachings but originated in fact from China, which most Vietnamese were not aware of. In other aspects of life, there were many similar examples of Vietnamese so ready and comfortable with adding new norms, values, and beliefs, even contradictory ones, to their culture. This phenomenon, dubbed “cultural additivity”, prompted us to study the co-existence, interaction, and influences among core values and norms of the Three Teachings –Confucianism, Buddhism, and Taoism–as shown through Vietnamese folktales. By applying Bayesian logistic regression, we evaluated the possibility of whether the key message of a story was dominated by a religion (dependent variables), as affected by the appearance of values and anti-values pertaining to the Three Teachings in the story (independent variables). Our main findings included the existence of the cultural additivity of Confucian and Taoist values. More specifically, empirical results showed that the interaction or addition of the values of Taoism and Confucianism in folktales together helped predict whether the key message of a story was about Confucianism, β_{VT⋅VC} =0.86. Meanwhile, there was no such statistical tendency for Buddhism. The results lead to a number of important implications. First, this showed the dominance of Confucianism because the fact that Confucian and Taoist values appeared together in a story led to the story’s key message dominated by Confucianism. Thus, it presented the evidence of Confucian dominance and against liberal interpretations of the concept of the Common Roots of Three Religions (“tam giáo đồng nguyên”) as religious unification or unicity. Second, the concept of “cultural additivity” could help explain many interesting socio-cultural phenomena, namely the absence of religious intolerance and extremism in the Vietnamese society, outrageous cases of sophistry in education, the low productivity in creative endeavors like science and technology, the misleading branding strategy in business. We are aware that our results are only preliminary and more studies, both theoretical and empirical, must be carried out to give a full account of the explanatory reach of “cultural additivity”.

Evaluating Loan Loss Provisioning for Non-Performing Loans and Its Impact on the Profitability of Commercial Banks in Bangladesh

2018 ◽  
Vol 2 (2) ◽  
pp. 33-41
Author(s):  
Fakir Tajul Islam
Keyword(s):  
Commercial Banks ◽  
Statistical Significance ◽  
Least Square ◽  
Business Success ◽  
Optimum Level ◽  
Loan Loss ◽  
Independent Variables ◽  
Loan Loss Provision ◽  
Interest Income ◽  
Dependent Variables

Through the collection and disbursement of money, banks often face the risk of default of the loan. These Non-Performing loans (NPLs) should be identified and cared for avoiding vulnerability to other risk. Banks may mitigate this risk using loan loss provisioning (LLP). Using the aggregate data of 56 commercial banks in the last 9 years (2009-2017), this study attempts to evaluate the Impacts of LLP maintained for NPLs on profitability, as it may help to take the level of the LLP, and NPLs in the optimum level of business success.  The dependent variables used in this study are Non-Interest Income to Total Assets and Net-Interest Income to Total Assets as a representative of the profitability of a bank. The dependent variables are analyzed using Least Square Multiple Regression on three independent variables, which were Gross NPL to Total Loans Outstanding, Loan Loss Provision Maintained, and Surplus/ (Shortfall) resulted from the required loan provisioning. The result showed that the profitability is very significantly influenced by the independent variables. NPLs and LLPs maintained by the commercial banks negatively related with the profitability of the business, especially LLPs shown statistical significance to impact on profitability negatively. it is better to take the LLPs and NPLs in the minimum level for maximum profitability of banks.

scholarly journals ACE and ACTN3 Gene Polymorphisms and Genetic Traits of Rowing Athletes in the Northern Han Chinese Population

2021 ◽  
Vol 12 ◽  
Author(s):  
Qi Wei
Keyword(s):  
Body Weight ◽  
Gene Polymorphisms ◽  
Female Athletes ◽  
Statistical Significance ◽  
Linear Regression Analysis ◽  
Genetic Effect ◽  
Male Athletes ◽  
Genetic Traits ◽  
Independent Variables ◽  
Dependent Variables

This investigation aimed to explore the effects of ACE I/D and ACTN3 R577X gene polymorphisms on specific quantitative variables, including height, weight, arm span, biacromial breadth, forced vital capacity (FVC), FVC/weight, maximal oxygen uptake (VO2max), prone bench pull (PBP), loaded barbell squat (LBS), and 3,000-m run, in 243 Chinese rowing athletes. The ACE and ACTN3 genotypes were obtained for each athlete via polymerase chain reaction on saliva samples, and the genotype frequency was analyzed. The ACE genotype frequency of rowing athletes were 45.8% II, 42.2% ID, and 12% DD for males and 33.6% II, 48% ID, and 18.4% DD for females. There were significant differences in weight in male athletes, PBP in female athletes, and ACE genotypes. A linear regression analysis using PBP and LBS as different dependent variables and ACE genotypes as independent variables based on the ACE I allele additive genetic effect showed a statistical significance in female athletes (p < 0.05). There was a significant difference in the distribution of the three genotypes among male athletes (36.7% XX, 38.5% RX, and 24.8% RR, χ2 = 5.191, df = 2, p = 0.022 < 0.05). There were no significant differences in the distribution of the three genotypes among female athletes (23.8% XX, 47.8% RX, 28.4% RR, χ2 = 0.24, df = 2, p = 0.619 > 0.05). The ACTN3 gene polymorphism of male rowing athletes was dominated by the ACTN3 577X allele. There were significant differences in the χ2 test between groups of male athletes. The ACTN3 R577 allele was dominant in female athletes. There were significant differences between PBP and FVC/body weight and ACTN3 genotypes in male athletes by ANOVA, respectively (p < 0.05). A linear regression analysis using FVC and FVC/body weight as dependent variables and ACTN3 genotypes as independent variables based on the ACTN3 577X allele recessive genetic effect showed statistical significance in male athletes (p < 0.05). These results suggested that ACE and ACTN3 gene polymorphisms may be used as biomarkers of genetic traits in Chinese rowing athletes.

scholarly journals Cumulative deviation of a subpopulation from the full population

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Mark Tygert
Keyword(s):  
Propensity Scores ◽  
Probability Distributions ◽  
Statistical Significance ◽  
Real Data ◽  
Graphical Methods ◽  
Data Sets ◽  
Summary Statistics ◽  
Statistical Significance Testing ◽  
Cumulative Deviation ◽  
Full Population

AbstractAssessing equity in treatment of a subpopulation often involves assigning numerical “scores” to all individuals in the full population such that similar individuals get similar scores; matching via propensity scores or appropriate covariates is common, for example. Given such scores, individuals with similar scores may or may not attain similar outcomes independent of the individuals’ memberships in the subpopulation. The traditional graphical methods for visualizing inequities are known as “reliability diagrams” or “calibrations plots,” which bin the scores into a partition of all possible values, and for each bin plot both the average outcomes for only individuals in the subpopulation as well as the average outcomes for all individuals; comparing the graph for the subpopulation with that for the full population gives some sense of how the averages for the subpopulation deviate from the averages for the full population. Unfortunately, real data sets contain only finitely many observations, limiting the usable resolution of the bins, and so the conventional methods can obscure important variations due to the binning. Fortunately, plotting cumulative deviation of the subpopulation from the full population as proposed in this paper sidesteps the problematic coarse binning. The cumulative plots encode subpopulation deviation directly as the slopes of secant lines for the graphs. Slope is easy to perceive even when the constant offsets of the secant lines are irrelevant. The cumulative approach avoids binning that smooths over deviations of the subpopulation from the full population. Such cumulative aggregation furnishes both high-resolution graphical methods and simple scalar summary statistics (analogous to those of Kuiper and of Kolmogorov and Smirnov used in statistical significance testing for comparing probability distributions).

scholarly journals THE DIFFERENCE OF EFFECTIVENESS OF ANIMATED AND NON-ANIMATED MOVIES ON THE IMPROVEMENT OF CHILDREN’S KNOWLEDGE AND ATTITUDES ABOUT DENTAL HEALTH

2019 ◽  
Vol 14 (1) ◽  
pp. 60
Author(s):  
Isha Sandya ◽  
Sri Widati
Keyword(s):  
Dental Health ◽  
Average Score ◽  
Age Group ◽  
Independent Variables ◽  
Knowledge And Attitudes ◽  
Dependent Variables ◽  
Before And After ◽  
Quasi Experimental ◽  
The Difference ◽  
And Behavior

According to Basic Health Research 2013 states that the age group less than 12 years ie age 5-9 years 28.9% suffered dental caries. The aim of this study is to analyze the effectiveness of animated movies and non- animated movies in improving children’s knowledge and behavior concerning dental health. This study was designed based on quasi experimental design. The samples of this study were the students of Class 3A and Class 3B SDN 03 Kepanjen consisting of 63 students. The independent variables of this study were animated movie and non-animated movie concerning dental health while the dependent variables were children’s knowledge and behavior. The collected data were analyzed using Mann Whitney test. The findings of this study show that the respondents are aged between 8 and 10 years old. There is difference in terms of knowledge before and after the students received intervention through animated movie and non-animated movie. Animated movie seems to be more effective in improving the respondents’ knowledge to maintain dental health than non-animated movie as indicated by the average score for animated movie intervention is higher than non-animated movie intervention.

scholarly journals Maisyah and Culture of Work as Motivation for Work, Analysis in the General Elections Commission Secretariat (KPU) Musi Rawas Regency

EL-Ghiroh ◽  
2020 ◽  
Vol 18 (01) ◽  
pp. 46-67
Author(s):  
Supriadi Supriadi ◽  
Pasiska Pasiska
Keyword(s):  
Work Motivation ◽  
Critical Value ◽  
T Test ◽  
Average Score ◽  
F Test ◽  
Independent Variables ◽  
Dependent Variables ◽  
General Elections ◽  
Result Analysis ◽  
Test Result

This study aims to determine the effect of Maisyah and Culture of Work toward the Work Motivation Employee of General Elections Commissionof Musi Rawas regency. This study involved 4 respondents, all of which were employees of General Elections Commissionof Musi Rawas regency. To collect the data, this study used a set of questionnaires and the respond given by the sample was analyzed by (1) average score, (2) multiple linearity regression, (3)determination coefficient, (4) partial t-test and F test techniques.Based on the result analysis, it was found out that (1) there is a positive correlation between independent variables with the dependent variables, (2) the magnitude of independent variables influence toward the dependent variable was 40.40% and (3) the partial t – test and F – test result showed higher coefficient values than those on the critical value of the t and F tables. Based on these findings, it was concluded that maisyah and culture of work, separately and simultaneously, influenced the work motivation employee of General Elections Commission of Musi Rawas regency.

Applying Possessive pronoun in Writing Sentences: Exploring Students’ Ability and Problems in a Mixed Method Study

2019 ◽  
Vol 1 (3) ◽  
pp. 79-83
Author(s):  
Eka Utami Putri ◽  
Syahdan Syahdan
Keyword(s):  
Mixed Method ◽  
Simple Random Sampling ◽  
Average Score ◽  
Mixed Method Study ◽  
Z Score ◽  
Possessive Pronoun ◽  
Efl Students ◽  
The Common ◽  
Common Problems ◽  
Essay Test

The purpose of this research was to find out the students' ability in applying Possessive pronoun in writing sentences and the problems encounter it.  This mixed method study employs an explanatory design to reveals it. 53 students out of 105 students from1st semester EFL students from one reputable University in Pekanbaru, Indonesia, were invited to this study. These 53 students were selected using simple random sampling and enrolled for an essay test and interview to see the students' ability and explaining the problems. The data analysis using SPSS showed that the average score of students was 52.98. Meanwhile for the median is 48, the mode is 20. The score of Standard Deviation is 27.93, Variance is 780.25, and Range is 84.  Z-Score was found 41.5%, which is means higher than average and 58.5% while, students' ability was indicated below the average. It showed that the students were low ability in applying possessive pronoun in writing sentences. The study also found the common problems, i.e., (1) students still mixed up between possessive pronoun and possessive adjectives. (2) students used the wrong pattern in using a possessive pronoun. (3) students did not understand clearly about a possessive pronoun, (4) experiencing difficulties in learning possessive pronoun. 

ANALISA PENGARUH IKLIM ORGANISASI DAN KOMPETENSI TERHADAP KINERJA PEGAWAI PT HUTAMA KARYA

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Erik Wardhana, MM.
Keyword(s):  
Organizational Climate ◽  
Employee Performance ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Free Variable ◽  
Independent Variables ◽  
Dependent Variables ◽  
Correlational Approach ◽  
Survey Research Methods ◽  
The Relationship

This study entitled "Analysis of Effect of Climate Organization and Competence Againt Employee PT. Hutama Karya ". The purpose of this study was to obtain information on the relationship between the free variable that organizational climate (X1) and competence (X2) with the dependent variable is employee performance (Y), either partially or simultaneously, This study used survey research methods with the correlational approach and predictive, which aims for the relationship and influence between independent and dependent variables. The sampling technique can be done randomly (simple random sampling) of 852 employees, which is considered to resprentatif is 89 people. And to solve problems, to analyze and examine the relationship and influence between the independent variables on the dependent variable used models kausalistik through regression analysis with SPSS 14.0

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