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Wilson, E., Worcester, J.
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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.
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t Testing the Immune System [PDF]
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
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Non-central t distribution and the power of the t test: A rejoinder [PDF]
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
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Why Psychologists Should by Default Use Welch’s t-test Instead of Student’s t-test
When comparing two independent groups, psychology researchers commonly use Student’s 't'-tests. Assumptions of normality and homogeneity of variance underlie this test.
Marie Delacre +2 more
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Performance of the T-SPOTⓇ.COVID test for detecting SARS-CoV-2-responsive T cells
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
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Errata to Non-central tdistribution and the power of the t test: A rejoinder [PDF]
Errors were found in equations 3c and 3d of Cousineau and Laurencelle (2011) Non-central t distribution and the power of the t test: A rejoinder.
Denis Cousineau, Louis Laurencelle
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Waldian t tests: Sequential Bayesian t tests with controlled error probabilities
Bayesian t tests have become increasingly popular alternatives to null-hypothesissignificance testing (NHST) in psychological research. In contrast to NHST, they allow for the quantification of evidence in favor of the null hypothesis and for optional stopping.
Schnuerch, Martin +2 more
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Comparison of the empirical variances and mean values of normally distributed populations of nuclear counts [PDF]
This paper discusses the possibility of applying the F-test and double t-test in problems related to the identification of number of radioactive isotopes in a contaminated area by using only counters for radiation detection.
Lazarević Đorđe R. +3 more
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A current transformer (CT) is a specialized device used to reduce high current values to safe and manageable levels in measurement and protection systems. Current ratio error (CRE) is an inevitable error in CTs due to factors such as magnetic saturation,
Ishak Ozer, Ali Unluturk
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