# \#stat-test

**URL:** https://discourse.datamethods.org/tag/stat-test/82.md

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## [Significance versus hypothesis testing](https://discourse.datamethods.org/t/significance-versus-hypothesis-testing/28638)

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**Author:** [@s\_doi](https://discourse.datamethods.org/u/s_doi)\
**Replies:** 13\
**Last updated:** [February 17, 2026, 9:39pm UTC](https://discourse.datamethods.org/t/significance-versus-hypothesis-testing/28638 "2026-02-17T21:39:26Z")

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We make a distinction between Fishers approach and the NP approach (Fix α (e.g., 0.05), control type I error, maximize power subject to that constraint). However after reading the arguments between Fisher and NP, I tend …

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## [Is it legitimate to perform statistical test on test statistics such as t-values or z-scores?](https://discourse.datamethods.org/t/is-it-legitimate-to-perform-statistical-test-on-test-statistics-such-as-t-values-or-z-scores/6387)

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**Author:** [@JeanChen](https://discourse.datamethods.org/u/JeanChen)\
**Replies:** 5\
**Last updated:** [January 26, 2023, 6:14pm UTC](https://discourse.datamethods.org/t/is-it-legitimate-to-perform-statistical-test-on-test-statistics-such-as-t-values-or-z-scores/6387 "2023-01-26T18:14:21Z")

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Hello, I wonder if it is valid to perform a statistical test on test statistics such t-values or z-scores. I don’t have a specific example but let’s imagine there are two groups, A and B, each containing 50 individuals,…

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## [BBR Session 6: Two-sample Tests for Means](https://discourse.datamethods.org/t/bbr-session-6-two-sample-tests-for-means/2768)

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**Author:** [@f2harrell](https://discourse.datamethods.org/u/f2harrell)\
**Replies:** 14\
**Last updated:** [October 21, 2021, 2:19am UTC](https://discourse.datamethods.org/t/bbr-session-6-two-sample-tests-for-means/2768 "2021-10-21T02:19:11Z")

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This is a place for questions, answers, and discussion about session 6 of the Biostatistics for Biomedical Research airing 2019-12-06 and dealing with frequentist and Bayesian 2-sample t-tests and how not to present resu…

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## [How to use statistical hypothesis testing to find if associations between discretised account balances and campaign conversion rates](https://discourse.datamethods.org/t/how-to-use-statistical-hypothesis-testing-to-find-if-associations-between-discretised-account-balances-and-campaign-conversion-rates/3548)

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**Author:** [@scac1041](https://discourse.datamethods.org/u/scac1041)\
**Replies:** 1\
**Last updated:** [July 4, 2020, 3:43pm UTC](https://discourse.datamethods.org/t/how-to-use-statistical-hypothesis-testing-to-find-if-associations-between-discretised-account-balances-and-campaign-conversion-rates/3548 "2020-07-04T15:43:41Z")

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Background I have a situation where I have data on bank balances of various respondents, and a flag for whether they completed a desired action (i.e., whether they purchased a loan or not). The data on savings/money has…

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## [Should people stop using the WMW rank-sum test?](https://discourse.datamethods.org/t/should-people-stop-using-the-wmw-rank-sum-test/540)

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**Author:** [@bobmcpop](https://discourse.datamethods.org/u/bobmcpop)\
**Replies:** 16\
**Last updated:** [October 5, 2018, 1:01pm UTC](https://discourse.datamethods.org/t/should-people-stop-using-the-wmw-rank-sum-test/540 "2018-10-05T13:01:28Z")

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The author of this paper “t-tests, non-parametric tests, and large studies—a paradox of statistical practice?” puts it better than I can paraphrase: “Non-parametric tests are most useful for small studies. Using non-par…