Results 21 to 30 of about 30,795,905 (276)

On the T-test

open access: yesStatistics & Probability Letters, 2022
The $T$-test is probably the most popular statistical test; it is routinely recommended by the textbooks. The applicability of the test relies upon the validity of normal or Student's approximation to the distribution of Student's statistic $\,t_n$. However, the latter assumption is not valid as often as assumed.
openaire   +2 more sources

Robustness of T-test Based on Skewness and Kurtosis

open access: yes, 2021
Coverage probabilities of the two-sided one-sample t-test are simulated for some symmetric and right-skewed distributions. The symmetric distributions analyzed are Normal, Uniform, Laplace, and student-t with 5, 7, and 10 degrees of freedom.
S. Garren, K. Osborne
semanticscholar   +1 more source

The Test Re-Test Reliability of A Novel Single Leg Hop Test (T-Drill Hop Test)

open access: yesInternational Journal of Sports Physical Therapy, 2021
# Background Functional training and testing are an important part of a comprehensive rehabilitation program stressing the neuromuscular system in ways that simulate athletic performance to help determine criteria for return to sport. There are numerous
Rodney Negrete   +7 more
doaj   +1 more source

t Testing the Immune System [PDF]

open access: yesImmunity, 2008
Amid the flurry of grant writing and experimentation, statistical analysis sometimes gets less attention than it requires. Here, we describe fully the considerations that should go into the employment of the statistical two-sample t test.
Lamb, Tracey J.   +2 more
openaire   +2 more sources

Development of Minimal Pair Test in Tamil (MPT-T) [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2021
Introduction: Speech perception testing provides an accurate measurement of the child’s ability to perceive and distinguish the various phonetic segments and patterns of the sounds.
Kavitha Vijayakumar   +2 more
doaj   +1 more source

Mental Toughness Levels of Male and Female Football Players

open access: yesTürk Spor ve Egzersiz Dergisi, 2023
The aim of this study is to determine the mental toughness levels of male and female football players in sports. The population of the study consists of female football players from the Super League in 2021-2022 and amateur football players in the ...
Alpaslan Kartal   +2 more
doaj  

Algorithm to choose the appropriate test for comparison between two groups

open access: yesCancer Research, Statistics, and Treatment, 2021
The current manuscript describes the method of selection of statistical tests for comparing two groups. In this article, we discuss the factors on which the selection of tests depends and provide an algorithm for the selection of the inferential ...
Sampada B Dessai, Vijay M Patil
doaj   +1 more source

Non-central t distribution and the power of the t test: A rejoinder [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2011
Non-central t distribution needed for assessing the power of the t test is described. Three approximations are compared and their merits discussed in regard to simplicity and accuracy.
Denis Cousineau, Louis Laurencelle
doaj  

Performance of the T-SPOTⓇ.COVID test for detecting SARS-CoV-2-responsive T cells

open access: yesInternational Journal of Infectious Diseases, 2021
Objective: To evaluate the performance of the T-SPOT.COVID test for identifying SARS-CoV-2-responsive T-cells in participants with SARS-CoV-2 infection.
Margaret Kruse   +8 more
doaj   +1 more source

Controlling decision errors with minimal costs: The sequential probability ratio t test.

open access: yesPsychological methods, 2020
For several years, the public debate in psychological science has been dominated by what is referred to as the reproducibility crisis. This crisis has, inter alia, drawn attention to the need for proper control of statistical decision errors in testing ...
Martin Schnuerch, E. Erdfelder
semanticscholar   +1 more source

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