Results 11 to 20 of about 30,795,905 (276)

Statistical notes for clinical researchers: the independent samples t-test. [PDF]

open access: yesRestor Dent Endod, 2019
https://rde.ac The t-test is frequently used in comparing 2 group means. The compared groups may be independent to each other such as men and women. Otherwise, compared data are correlated in a case such as comparison of blood pressure levels from the ...
Kim HY.
europepmc   +2 more sources

Analysis of t-test misuses and SPSS operations in medical research papers. [PDF]

open access: yesBurns Trauma, 2019
In medical research papers, the selection of appropriate statistical methods serves as one of the pivotal premises to ensure the quality of papers and credibility of their results [1–3]. To correctly perform the statistical analysis of quantitative data,
Liang G, Fu W, Wang K.
europepmc   +2 more sources

Can the Immune System Perform a t-Test? [PDF]

open access: yesPLoS ONE, 2017
The self-nonself discrimination hypothesis remains a landmark concept in immunology. It proposes that tolerance breaks down in the presence of nonself antigens. In strike contrast, in statistics, occurrence of nonself elements in a sample (i.e., outliers)
Bruno Filipe Faria   +2 more
doaj   +2 more sources

Case for omitting tied observations in the two-sample t-test and the Wilcoxon-Mann-Whitney Test. [PDF]

open access: yesPLoS One, 2018
When the distributional assumptions for a t-test are not met, the default position of many analysts is to resort to a rank-based test, such as the Wilcoxon-Mann-Whitney Test to compare the difference in means between two samples.
McGee M.
europepmc   +2 more sources

Multivariate Welch t-test on distances. [PDF]

open access: yesBioinformatics, 2016
Motivation: Permutational non-Euclidean analysis of variance, PERMANOVA, is routinely used in exploratory analysis of multivariate datasets to draw conclusions about the significance of patterns visualized through dimension reduction.
Alekseyenko AV.
europepmc   +2 more sources

The Differences and Similarities Between Two-Sample T-Test and Paired T-Test. [PDF]

open access: yesShanghai Arch Psychiatry, 2017
Summary In clinical research, comparisons of the results from experimental and control groups are often encountered. The two-sample t-test (also called independent samples t-test) and the paired t-test are probably the most widely used tests in ...
Xu M   +5 more
europepmc   +2 more sources

PENGAPLIKASIAN UJI T DALAM PENELITIAN EKSPERIMEN

open access: yesJurnal Lebesgue, 2023
Research is a scientific activity to examine and approve the theory or assumption. In examining assumption, research needs approach and method. Researcher should determine not only the appropriate approach but also the right method to manage finding of ...
Azka Dhianti Putri   +4 more
doaj   +1 more source

Note on the t-Test [PDF]

open access: yesProceedings of the National Academy of Sciences, 1942
Not ...
Wilson, E., Worcester, J.
openaire   +2 more sources

A Statistical Test of Station Thunderstorm Days Based on Lightning Location System and Its Evolution Characteristics

open access: yesGaoyuan qixiang, 2023
To research the continuity and climate evolution characters of station lightning data in Fujian Province, the paper established the calculation model based on Lightning Location System.The data sorted to thunderstorm days by observed(1982 -2013) and by ...
Bo PANG   +4 more
doaj   +1 more source

The Use of One Sample t-Test in the Real Data

open access: yesJOURNAL OF ADVANCES IN MATHEMATICS, 2022
 The t-statistic is the ratio of the departure of the estimated value of a parameter from its hypothesized value to its standard error. The term "t-statistic" is abbreviated from "hypothesis test statistic".
M. Al-Kassab
semanticscholar   +1 more source

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