Results 21 to 30 of about 13,979,009 (326)

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  

Comparison of the empirical variances and mean values of normally distributed populations of nuclear counts [PDF]

open access: yesNuclear Technology and Radiation Protection, 2014
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
doaj   +1 more source

Waldian t tests: Sequential Bayesian t tests with controlled error probabilities

open access: yesPsychological Methods, 2021
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
openaire   +4 more sources

Testing the Relationship Between Air Temperature and Relative Humidity by Using T-Test for Some Selected Stations in Iraq

open access: yesAl-Mustansiriyah Journal of Science, 2021
Temperature and relative humidity are the most important factors affecting on human comfort. This Research test the monthly average temperature and relative humidity for some selected stations in Iraq, three stations (Baghdad - Mosul - Basra) to find the
Iqbal Khalaf Al-Ataby   +1 more
doaj   +1 more source

Pseudohermitian Hamiltonians, time-reversal invariance and Kramers degeneracy [PDF]

open access: yes, 2002
A necessary and sufficient condition in order that a (diagonalizable) pseudohermitian operator admits an antilinear symmetry T such that T^{2}=-1 is proven.
Bender   +14 more
core   +2 more sources

Emotion management in mathematics test

open access: yesMoroccan Journal of Quantitative and Qualitative Research, 2019
The main purpose of this study is identifying and comparing profiles of high-performing students group and lowperforming students group in terms of type of emotions reported in test context and frequency of using emotion management strategies mobilized ...
S. HADJI, H. MAYMOUN
doaj   +1 more source

MAGNETOSPHERIC ACCRETION IN T TAURI STARS: OBSERVATIONAL TEST

open access: yesOdessa Astronomical Publications, 2017
In the classical T Tauri stars (CTTS) the magnetic field plays an important role in the interaction between the star and the accretion disk. In 1996-2000 we have carried out an extensive spectroscopic and photometric monitoring of the extremly active ...
P. P. Petrov
doaj   +1 more source

Comparison of Current Ratio Errors of Support and Toroidal Type CTs in Electric Power Systems: A Case Study

open access: yesIEEE Access
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
doaj   +1 more source

Errata to Non-central tdistribution and the power of the t test: A rejoinder [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2015
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
doaj  

Medical Statistics Series: Inferential Statistics (Part-II)

open access: yesNational Journal of Community Medicine, 2021
The purpose of this article is to provide detailed information of application of different inferential statistical methods and interpretation of its outcome values.
Swati Patel
doaj  

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