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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1870 1
1887 1
1901 1
1918 1
1921 1
1927 1
1947 3
1948 1
1950 1
1952 2
1953 2
1955 3
1956 1
1957 1
1958 2
1959 1
1962 4
1963 3
1964 2
1965 1
1966 2
1967 2
1968 4
1969 2
1970 5
1971 2
1972 3
1973 8
1974 5
1975 33
1976 35
1977 51
1978 42
1979 34
1980 51
1981 36
1982 62
1983 58
1984 56
1985 71
1986 73
1987 77
1988 87
1989 130
1990 132
1991 109
1992 108
1993 126
1994 128
1995 157
1996 179
1997 243
1998 282
1999 288
2000 281
2001 253
2002 218
2003 204
2004 238
2005 250
2006 269
2007 312
2008 301
2009 339
2010 313
2011 352
2012 358
2013 424
2014 497
2015 515
2016 482
2017 477
2018 671
2019 708
2020 806
2021 903
2022 867
2023 800
2024 248

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12,521 results

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Page 1
Welch's Rubber Solder.
[No authors listed] [No authors listed] Am J Dent Sci. 1870 Nov;4(7):336. Am J Dent Sci. 1870. PMID: 30752568 Free PMC article. No abstract available.
Sample size determinations for Welch's test in one-way heteroscedastic ANOVA.
Jan SL, Shieh G. Jan SL, et al. Br J Math Stat Psychol. 2014 Feb;67(1):72-93. doi: 10.1111/bmsp.12006. Epub 2013 Jan 14. Br J Math Stat Psychol. 2014. PMID: 23316952
On the basis of extensive empirical evidence of Type I error control and power performance, Welch's procedure is frequently recommended as the major alternative to the ANOVA F test under variance heterogeneity. To enhance its practical usefulness, this paper conside …
On the basis of extensive empirical evidence of Type I error control and power performance, Welch's procedure is frequently re …
Sample-size determination for the Bayesian t test and Welch's test using the approximate adjusted fractional Bayes factor.
Fu Q, Hoijtink H, Moerbeek M. Fu Q, et al. Behav Res Methods. 2021 Feb;53(1):139-152. doi: 10.3758/s13428-020-01408-1. Behav Res Methods. 2021. PMID: 32632740 Free PMC article.
This paper introduces the R package SSDbain, which can be used to determine the sample size needed to evaluate these hypotheses using the approximate adjusted fractional Bayes factor (AAFBF) implemented in the R package bain. Both the Bayesian t test and the Bayesian Welch …
This paper introduces the R package SSDbain, which can be used to determine the sample size needed to evaluate these hypotheses using the ap …
Country-level predictors of COVID-19 mortality.
Brown PA. Brown PA. Sci Rep. 2023 Jun 7;13(1):9263. doi: 10.1038/s41598-023-36449-x. Sci Rep. 2023. PMID: 37286632 Free PMC article.
COVID-19 deaths, as well as geographic, demographic, socioeconomic, healthcare, population health, and pandemic-related variables, were obtained for 152 countries. Continuous variables were examined with Spearman's correlation, categorical variables with ANOVA or Welch …
COVID-19 deaths, as well as geographic, demographic, socioeconomic, healthcare, population health, and pandemic-related variables, were obta …
Low-complexity storage-reduced digital spectrum-based soft-failure management with Welch's method.
Shu L, Yu Z, Wan Z, Xu K. Shu L, et al. Opt Express. 2020 Apr 27;28(9):12529-12541. doi: 10.1364/OE.387384. Opt Express. 2020. PMID: 32403749 Free article.
To reduce computational complexity and storage requirement for digital spectrum calculation, Welch's method is employed instead of applying fast Fourier transform on a long sampling sequence. ...
To reduce computational complexity and storage requirement for digital spectrum calculation, Welch's method is employed instea …
Optimal sample size allocation for Welch's test in one-way heteroscedastic ANOVA.
Shieh G, Jan SL. Shieh G, et al. Behav Res Methods. 2015 Jun;47(2):374-83. doi: 10.3758/s13428-014-0477-8. Behav Res Methods. 2015. PMID: 24903689
This study concerns the allocation schemes of group sizes for Welch's test in a one-way heteroscedastic ANOVA. Optimal allocation approaches are presented for minimizing the total cost while maintaining adequate power and for maximizing power performance for a fixed …
This study concerns the allocation schemes of group sizes for Welch's test in a one-way heteroscedastic ANOVA. Optimal allocat …
Causal functional connectivity in Alzheimer's disease computed from time series fMRI data.
Biswas R, Sripada S. Biswas R, et al. Front Comput Neurosci. 2023 Dec 19;17:1251301. doi: 10.3389/fncom.2023.1251301. eCollection 2023. Front Comput Neurosci. 2023. PMID: 38169714 Free PMC article.
Then, we used the CFC outcomes of TPC and performed an exploratory analysis of the difference in strengths of CFC edges between Alzheimer's and cognitively normal groups, based on edge-wise p-values obtained by Welch's t-test. The brain regions thus identifie …
Then, we used the CFC outcomes of TPC and performed an exploratory analysis of the difference in strengths of CFC edges between Alzheimer' …
Objective excyclotorsion in age-related distance esotropia.
Oohira A. Oohira A. Strabismus. 2022 Jun;30(2):72-77. doi: 10.1080/09273972.2022.2055091. Epub 2022 Mar 31. Strabismus. 2022. PMID: 35354422
DFA in ARDE patients was not different from that in the control group (Welch's t-test: ARDE vs Control, right eye; 7.7 2.9 vs 6.8 3.9, p = .18. ...
DFA in ARDE patients was not different from that in the control group (Welch's t-test: ARDE vs Control, right eye; 7.7 2.9 vs …
Optimal sample sizes for Welch's test under various allocation and cost considerations.
Jan SL, Shieh G. Jan SL, et al. Behav Res Methods. 2011 Dec;43(4):1014-22. doi: 10.3758/s13428-011-0095-7. Behav Res Methods. 2011. PMID: 21512873
This article presents exact techniques for optimizing sample size determinations in the context of Welch (Biometrika, 29, 350-362, 1938) test of the difference between two means under various design and cost considerations. ...
This article presents exact techniques for optimizing sample size determinations in the context of Welch (Biometrika, 29, 350-362, 19 …
Reliably picking the best endpoint.
Follmann D. Follmann D. Stat Med. 2018 Dec 20;37(29):4374-4385. doi: 10.1002/sim.7927. Epub 2018 Aug 8. Stat Med. 2018. PMID: 30091264
We consider in detail the setting of continuous endpoints where a Welch's t-statistic is used to analyze the data. We develop an estimator that depends on the squared ratio of estimated standardized treatment effects, and the quadrant on the plane in which they fall …
We consider in detail the setting of continuous endpoints where a Welch's t-statistic is used to analyze the data. We develop …
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