Results 21 to 30 of about 3,802,566 (313)

The comparison of nonparametric statistical tests for interaction effects in factorial design [PDF]

open access: yesDecision Science Letters, 2019
Correct application of the classical factorial F-test depends on normality and homogeneity of variance assumptions. If these assumptions are violated the type I error rate will be inflated and power of the test will be decreased.
Ampai Thongteeraparp
doaj   +1 more source

A Comprehensive Study on Power of Tests for Normality

open access: yesJournal of Statistical Theory and Applications (JSTA), 2018
Many statistical procedures assume that the underling distribution is normal. In this paper, we consider the popular and powerful tests for normality and investigate the power values of these tests to detect deviations from normality.
Hadi Alizadeh Noughabi
doaj   +1 more source

Testing the Homogeneity of Sequences of Multivariate Random Variables [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2015
The paper discusses the method of examining the homogeneity of sequences of random variables including testing the normality of multivariate random variables as well as testing the equality of many expected values and testing the equality of many ...
Zbigniew Wesołowski
doaj   +1 more source

Empirical Type 1 Error Rate and Power Comparisons of Normality Tests with R

open access: yesCumhuriyet Science Journal, 2018
Normality is one of the main presuppositions instatistical tests. The multiplicity of the normality tests bring out anotherproblem of choosing the appropriate test for researchers.
Ülkü Erişoğlu   +3 more
doaj   +1 more source

Nonparametric statistical tests for the continuous data: the basic concept and the practical use [PDF]

open access: yesKorean Journal of Anesthesiology, 2016
Conventional statistical tests are usually called parametric tests. Parametric tests are used more frequently than nonparametric tests in many medical articles, because most of the medical researchers are familiar with and the statistical software ...
Francis Sahngun Nahm
doaj   +1 more source

Roughness of Deposited Carbon-Based Coatings and Its Statistical Characteristics at Nano and Microscales

open access: yesFrontiers in Mechanical Engineering, 2019
Topography of surfaces may influence many processes in tribology including friction and adhesion. Its influence is usually taken into account in various statistical models of rough surfaces.
Feodor M. Borodich   +4 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

Analysis of the Effectiveness of Learning in the Use of Learning Modules Against Student Learning Outcomes

open access: yesDesimal, 2019
At present there are still students who have difficulty in learning, due to limited learning resources. One effort that can be done is the use of modules in learning. Modules are printed teaching materials designed to be studied independently by learning
Rika Rahmawati   +2 more
doaj   +1 more source

PSYNDEX Tests Review für TLE A1 - TESTS ZU LEARNING ENGLISH A 1

open access: yes, 1984
This is a PSYNDEX Tests Review of TLE A1 - TESTS ZU LEARNING ENGLISH A 1. PSYNDEX Tests Reviews are written in German and describe and evaluate psychological and educational tests used in the German-speaking countries.
Prökel, Gerhard
core   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

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