Introduction of Human Development Index (HDI) by UNDP in early 1990 followed a surge in use of non-parametric and parametric indices for measurement and comparison of countries performance in development, globalization, competition, well-being and etc. The HDI is a composite index of three indicators. Its components are to reflect three major dimensions of human development: longevity, knowledg...

In this paper, we focus on the experimental analysis on the performance in cluster analysis with the use of nonparametric tests on the clustering task. Particularly, we have studied whether the sample of results from multiple trials obtained by conventional clustering algorithms checks the necessary conditions for being analyzed through parametrical tests. The study is conducted by considering ...

Parametric statistical methods are traditionally employed in functional magnetic resonance imaging (fMRI) for identifying areas in the brain that are active with a certain degree of statistical significance. These parametric methods, however, have two major drawbacks. First, it is assumed that the observed data are Gaussian distributed and independent; assumptions that generally are not valid f...

in this paper, the formation of club convergence among real per capita gdp of iran’s provinces is tests through use of non-parametric quantile regression and distribution dynamics approach. the results show two convergence clubs are forming among provinces and most of them are converging toward poor club. also, calculation of convergence speed shows that there is a vast difference among economi...

We develop a new test of a parametric model of a conditional mean function against a nonparametric alternative. The test adapts to the unknown smoothness of the alternative model and is uniformly consistent against alternatives whose distance from the parametric model converges to zero at the fastest possible rate. This rate is slower than n. Some existing tests have non-trivial power against r...

Introduction: Nowadays, the main focus of dental studies is on adhesive dental materials; since clinical long-term success of bonded restorations depended more on marginal microleakage minimization. So, the aim of this study was Evaluation of Diode laser irradiation effect on microleakage in class V composite restoration before and after adhesive application. Materials and methods: In this in v...

We present a novel characterization of the generalized family wise error rate: kFWER. The interpretation allows researchers to view kFWER as a function of the test statistics rather than current methods based on p-values. Using this interpretation we present several theorems and methods (parametric and non-parametric) for estimating kFWER in various data settings. With this version of kFWER, re...

Background: Despite many studies showing a correlation between fast food consumption and non-alcoholic fatty liver disease (NAFLD) known as the silent death, few studies have investigated the effects of different types of fast foods on this disease. This research aimed to evaluate the effect of consuming different types of fast foods on non-alcoholic fatty liver disease. Materials and Methods:...

In adaptive randomized experiments, researchers verify that random allocation yielded equivalent experimental groups before proceeding with data analysis. Given a precise definition of balanced groups (e.g., Cohen’s d < 0.5 for a continuous covariate), researchers may plan to keep reshuffling participants until balance is achieved. However, reshuffling can invalidate standard parametric tests, ...

Receiver operating characteristic (ROC) analysis, which yields indices of accuracy such as the area under the curve (AUC), is increasingly being used to evaluate the performances of diagnostic tests that produce results on continuous scales. Both parametric and nonparametric ROC approaches are available to assess the discriminant capacity of such tests, but there are no clear guidelines as to t...