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Type I Error Control for Tree Classification [PDF]

open access: yesCancer Informatics, 2014
Binary tree classification has been useful for classifying the whole population based on the levels of outcome variable that is associated with chosen predictors.
Sin-Ho Jung, Yong Chen, Hongshik Ahn
doaj   +2 more sources

Type I error control for cluster randomized trials under varying small sample structures [PDF]

open access: yesBMC Medical Research Methodology, 2021
Background Linear mixed models (LMM) are a common approach to analyzing data from cluster randomized trials (CRTs). Inference on parameters can be performed via Wald tests or likelihood ratio tests (LRT), but both approaches may give incorrect Type I ...
Joshua R. Nugent, Ken P. Kleinman
doaj   +2 more sources

Hypothesis testing, type I and type II errors

open access: yesIndustrial Psychiatry Journal, 2009
Hypothesis testing is an important activity of empirical research and evidence-based medicine. A well worked up hypothesis is half the answer to the research question.
Amitav Banerjee   +4 more
doaj   +3 more sources

Methods for nonparametric statistics in scientific research. Overview. Part 2

open access: yesТеория и практика переработки мяса, 2022
The use of nonparametric methods in scientific research provides a number of advantages. The most important of these advantages are versatility and a wide range of such methods.
M. A. Nikitina, I. M. Chernukha
doaj   +1 more source

Requirements for Minimum Sample Size for Sensitivity and Specificity Analysis [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Sensitivity and specificity analysis is commonly used for screening and diagnostic tests. The main issue researchers face is to determine the sufficient sample sizes that are related with screening and diagnostic studies. Although the formula for sample
Mohamad Adam Bujang, Tassha Hilda Adnan
doaj   +1 more source

Monte Carlo simulation of OLS and linear mixed model inference of phenotypic effects on gene expression [PDF]

open access: yesPeerJ, 2016
Background Self-contained tests estimate and test the association between a phenotype and mean expression level in a gene set defined a priori. Many self-contained gene set analysis methods have been developed but the performance of these methods for ...
Jeffrey A. Walker
doaj   +2 more sources

Type I error and power rates: A comparative analysis of techniques in differential item functioning

open access: yesInternational Journal of Assessment Tools in Education, 2023
The main purpose of this study is to examine the Type I error and statistical power ratios of Differential Item Functioning (DIF) techniques based on different theories under different conditions.
Bayram Bıçak   +1 more
doaj   +1 more source

Why Welch’s test is Type I error robust [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2016
The comparison of two means is one of the most commonly applied statistical procedures in psychology. The independent samples t-test corrected for unequal variances is commonly known as Welch’s test, and is widely considered to be a robust alternative to
Derrick, B., White, P.
doaj   +1 more source

: Efecto del incumplimiento de la hipótesis de normalidad en los gráficos de control de la media || Effect of non-compliance with the normality hypothesis on the mean control charts

open access: yesRevista de Métodos Cuantitativos para la Economía y la Empresa, 2021
Los gráficos de control son ampliamente usados para monitorizar la calidad de procesos industriales. Tradicionalmente se asume que la variable aleatoria que representa la característica de calidad se distribuye de forma normal y los límites de control se
Moya Fernández, Pablo   +2 more
doaj   +1 more source

Statistical hypothesis testing: general approach in medical research

open access: yesСеченовский вестник, 2021
Statistical hypothesis testing is one of the key steps in modern medical research. Initially, scientists formulate a research hypothesis based on which the statistical hypothesis is then developed and statistically tested.
A. Yu. Suvorov   +6 more
doaj   +1 more source

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