- What are the assumptions of a paired t-test? When to use a paired t-test? What is an unpaired t-test? - What are the hypotheses of an unpaired t-test? - What are the assumptions of an unpaired t-test? When to use an unpaired t-test? Paired vs unpaired t-test...
配对设计 paired t-test 成组设计 unpaired t-test
5) The test can be used to find out if the regression line has a slope different from zero. 6) Paired vs un-paired: A test of type 3 is a paired test. The samples are independent. A test of type 4 is an unpaired test. In many cases of unpaired data, it is the same variable ...
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...
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's appr...
The t-test is by far the most popular test used in NHST. We describe when the t-test is appropriate to use and how to choose the proper parameters (paired vs. unpaired, one tailed vs. two tailed, and equal vs. unequal variance). 展开 年份: 2017 ...
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....
这就是关联样本(paired samples)t-test。 如果你不确定是否应该选择关联样本,那么: 你是否在双样本的每一个样本中比较不同的观察值? 也就是说两组样本应该测量相同的变量(比如身高),但是样本来自两个不同的群体(比如A队和B队)。 这就是独立样本(unpaired samples) t-test。
Student's unpairedt-test or two-samplet-test is used to compare observations from two study groups when the groups are not matched. The assumptions of this test are different from those of the pairedt-test, so it is important to be clear about which test is appropriate. For the unpaired...
Paired or unpaired data? Interpreting results The three different options forttests have slightly different interpretations, but they all hinge onhypothesis testingand P values. You need to select a significance threshold for your P value (often 0.05) before doing the test. ...