Examples of appropriate instances during which to use an unpaired t-test: Research, such as a pharmaceutical study or other treatment plan, where ½ of the subjects are assigned to the treatment group and ½ of the subjects are randomly assigned to the control group. Research...
配对设计 paired t-test 成组设计 unpaired t-test
其他实验条件相同的情况下，在数据检验时，与对照组相比较，该用paired-test还是unpaired-test？请不吝...
其他实验条件相同的情况下，在数据检验时，与对照组相比较，该用paired-test还是unpaired-test？请不吝...
This file is applicable for equal or unequal sample sizes; for paired or unpaired samples. When the test is unpaired, the Fisher-Snedecor F-test is performed to assess the equality of variance. If variances are not equal, Satterthwaite's approximate t test is performed. The Statistical Toolbox...
David A. BelenkyMosby, Inc.Journal of PediatricsBelenky DA. Letter: significance of the paired and unpaired t test in evaluating CPAP. J Pediatr 1975; 86:481-482.Belenky DA. Letter: Significance of the paired and unpaired t test in evaluating CPAP. J Pediatr 1975; 86: 481-482....
testt Student's t test for unpaired or paired samples. This file is applicable for equal or unequal sample sizes; for paired or unpaired samples. When the test is unpaired, the Fisher-Snedecor F-test is performed to assess the equality of variance. If variances are not equal, Satterthwaite...
Describes how to use the t-test in Excel to determine whether two paired samples have equal means. We provide examples using standard Excel and Real Statistics.
Paired T Test - Introduction The paired t-test in statistics is a tool that compares the data between two groups of samples and determines whether the mean difference between given measurements is zero or not. In statistics, two-sample t-tests are tools
. The paired dependence test compares the repeated measurements within subjects, rather than across subjects, and in our case has greater power than an unpaired test. In a classical univariate paired difference analysis, we would first subtract the non-disease value from the disease value for each...