Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My Custom Filters

Edit custom filters

Results by year

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

Year Number of Results
1908 1
1911 1
1912 1
1920 1
1921 2
1922 1
1923 1
1924 1
1931 1
1946 1
1947 1
1948 1
1949 1
1953 2
1955 1
1959 1
1961 3
1962 3
1963 1
1964 1
1965 3
1966 2
1967 1
1968 2
1969 2
1970 2
1971 1
1972 1
1973 3
1974 6
1975 39
1976 39
1977 37
1978 40
1979 64
1980 44
1981 41
1982 69
1983 83
1984 86
1985 94
1986 87
1987 109
1988 113
1989 145
1990 174
1991 206
1992 219
1993 264
1994 360
1995 393
1996 512
1997 510
1998 562
1999 631
2000 645
2001 688
2002 787
2003 866
2004 1052
2005 1181
2006 1165
2007 1358
2008 1437
2009 1552
2010 1679
2011 1895
2012 2150
2013 2383
2014 2593
2015 2675
2016 2764
2017 2851
2018 3075
2019 3275
2020 3724
2021 4413
2022 4515
2023 4245
2024 4308
2025 4851
2026 3361

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

62,336 results

Results by year

Filters applied: . Clear all
Page 1
Sample size determination and power analysis using the G*Power software.
Kang H. Kang H. J Educ Eval Health Prof. 2021;18:17. doi: 10.3352/jeehp.2021.18.17. Epub 2021 Jul 30. J Educ Eval Health Prof. 2021. PMID: 34325496 Free PMC article. Review.
G*Power is recommended for sample size and power calculations for various statistical methods (F, t, chi2, Z, and exact tests), because it is easy to use and free. The process of sample estimation consists of establishing research goals and hypotheses, choosing appr …
G*Power is recommended for sample size and power calculations for various statistical methods (F, t, chi2, Z, and exact tests), becau …
An exact test for comparing two predictive values in small-size clinical trials.
Takahashi K, Yamamoto K. Takahashi K, et al. Pharm Stat. 2020 Jan;19(1):31-43. doi: 10.1002/pst.1968. Epub 2019 Oct 23. Pharm Stat. 2020. PMID: 31642578
In addition, we execute simulation studies to evaluate the performance of the proposed exact test and existing methods in small-size clinical trials. The proposed test can calculate the exact P value, and as a result of simulations, the empirical type …
In addition, we execute simulation studies to evaluate the performance of the proposed exact test and existing methods in smal …
Sample size and optimal designs for reliability studies.
Walter SD, Eliasziw M, Donner A. Walter SD, et al. Stat Med. 1998 Jan 15;17(1):101-10. doi: 10.1002/(sici)1097-0258(19980115)17:1<101::aid-sim727>3.0.co;2-e. Stat Med. 1998. PMID: 9463853
The method is based on a functional approximation to earlier exact results. The approximation is shown to have excellent agreement with the exact results and one can use it easily without intensive numerical computation. Optimal design configurations are also …
The method is based on a functional approximation to earlier exact results. The approximation is shown to have excellent agreement wi …
Exact test-based approach for equivalence test with parameter margin.
Cassie Dong X, Bian Y, Tsong Y, Wang T. Cassie Dong X, et al. J Biopharm Stat. 2017;27(2):317-330. doi: 10.1080/10543406.2016.1265546. Epub 2017 Jan 5. J Biopharm Stat. 2017. PMID: 28055327
The equivalence test has a wide range of applications in pharmaceutical statistics which we need to test for the similarity between two groups. ...To resolve this issue, we develop an exact-based test method and compare this method with other proposed …
The equivalence test has a wide range of applications in pharmaceutical statistics which we need to test for the similarity be …
Pair-switching rerandomization.
Zhu K, Liu H. Zhu K, et al. Biometrics. 2023 Sep;79(3):2127-2142. doi: 10.1111/biom.13712. Epub 2022 Jul 11. Biometrics. 2023. PMID: 35758335 Free article.
We obtain the unbiasedness and variance reduction of the difference-in-means estimator and show that the Fisher randomization tests are valid under PSRR. Moreover, we propose an exact approach to invert Fisher randomization tests to confidence intervals, which is faster th …
We obtain the unbiasedness and variance reduction of the difference-in-means estimator and show that the Fisher randomization tests are vali …
The Choice Between Pearson's chi(2) Test and Fisher's Exact Test for 2 2 Tables.
Neuhäuser M, Ruxton GD. Neuhäuser M, et al. Pharm Stat. 2025 May-Jun;24(3):e70012. doi: 10.1002/pst.70012. Pharm Stat. 2025. PMID: 40156377
Pearson's asymptotic chi(2) test is often used to compare binary data between two groups. However, when the sample sizes or expected frequencies are small, the test is usually replaced by Fisher's exact test. ...Therefore, we recommend routinely using …
Pearson's asymptotic chi(2) test is often used to compare binary data between two groups. However, when the sample sizes or expected …
Two-part test of vaccine effect.
Hu Z, Proschan M. Hu Z, et al. Stat Med. 2015 May 20;34(11):1904-11. doi: 10.1002/sim.6412. Epub 2015 Jan 29. Stat Med. 2015. PMID: 25630496 Free PMC article.
To assess vaccine effect, we propose two adaptive tests. The weighted two-part test is a combination of two statistics, one on disease incidence and one on disease severity. More weight is given to the statistic with the larger a priori effect size, and the weights are det …
To assess vaccine effect, we propose two adaptive tests. The weighted two-part test is a combination of two statistics, one on diseas …
Hybrid test for publication bias in meta-analysis.
Lin L. Lin L. Stat Methods Med Res. 2020 Oct;29(10):2881-2899. doi: 10.1177/0962280220910172. Epub 2020 Apr 15. Stat Methods Med Res. 2020. PMID: 32290810 Free PMC article.
Although several simulation studies have been carried out to compare different tests' powers under various situations, it is typically infeasible to justify the exact mechanism of publication bias in a real-world meta-analysis and thus select the corresponding optimal publ …
Although several simulation studies have been carried out to compare different tests' powers under various situations, it is typically infea …
Assessing individual equivalence in parallel group and crossover designs: Exact test and sample size procedures.
Shieh G. Shieh G. PLoS One. 2022 May 27;17(5):e0269128. doi: 10.1371/journal.pone.0269128. eCollection 2022. PLoS One. 2022. PMID: 35622872 Free PMC article.
To signify and resolve the underlying issues of existing methods, this paper presents exact tests for assessing individual equivalence between two treatments under parallel group and crossover designs. ...
To signify and resolve the underlying issues of existing methods, this paper presents exact tests for assessing individual equivalenc …
Paired serial limiting dilution assays.
Li X, May S, Trumble IM, Archin NM, Hudgens MG. Li X, et al. Stat Med. 2022 Oct 30;41(24):4809-4821. doi: 10.1002/sim.9537. Epub 2022 Aug 17. Stat Med. 2022. PMID: 35975729 Free PMC article.
Asymptotic as well as exact inference methods have been proposed for hypothesis testing and confidence interval construction in this one-sample problem. ...The proposed exact method is compared to an approach based on asymptotic approximations in simulation studies. …
Asymptotic as well as exact inference methods have been proposed for hypothesis testing and confidence interval construction in this …
62,336 results
You have reached the last available page of results. Please see the User Guide for more information.