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Multiple comparisons arise when a statistical analysis involves multiple simultaneous statistical tests, each of which has a potential to produce a "discovery". A stated confidence level generally applies only to each test considered individually, but often it is desirable to have a confidence level for the whole family of simultaneous tests. [ 4 ]
In statistics, Dunnett's test is a multiple comparison procedure [1] developed by Canadian statistician Charles Dunnett [2] to compare each of a number of treatments with a single control. [ 3 ] [ 4 ] Multiple comparisons to a control are also referred to as many-to-one comparisons.
Statistical tests are used to test the fit between a hypothesis and the data. [1] [2] Choosing the right statistical test is not a trivial task. [1] The choice of the test depends on many properties of the research question. The vast majority of studies can be addressed by 30 of the 100 or so statistical tests in use. [3] [4] [5]
Kybrel, who sustained a traumatic brain injury and multiple bruises, was rushed to the hospital, WTAE reported. He also suffered a stroke and broken neck vertebra and, once admitted, was placed on ...
WASHINGTON (Reuters) -Donald Trump has tapped Keith Kellogg, a retired lieutenant general who presented him with a plan to end the war in Ukraine, to serve as a special envoy for the conflict, the ...
Multiple companies and individuals have revealed plans to donate at the $1 million-level, including online retail giant Amazon, Ford Motor Company and hedge fund billionaire Ken Griffin. Some have ...
[5] [6] Unlike Tukey's range test, the Newman–Keuls method uses different critical values for different pairs of mean comparisons. Thus, the procedure is more likely to reveal significant differences between group means and to commit type I errors by incorrectly rejecting a null hypothesis when it is true.
It was 2007 and at 17, I’d already been sexually active for two years and with multiple partners. I had rarely used a condom. I fiddled with the purity ring I wore on a chain around my neck ...