Search results with tag "Multiple comparisons"
About Multiple Comparison (or Pairwise Comparison) …
psych.unl.edumake multiple comparisons. One view is that Type I errors are a real problem, and we should "protect" ourselves from them by using more strict criteria for rejecting the H0: when we do multiple comparisons. We can easily do this by setting the p-value for rejecting H0: for each pairwise comparisons to some value lower than p= .05, say p=.01.
Type I and Type II errors
www.stat.berkeley.eduwhen statistical tests are used repeatedly, for example while doing multiple comparisons to test null hypotheses stating that the averages of several disjoint populations are equal to each other (homogeneous). Intuitively, even if a particular outcome of …
MULTIPLE COMPARISONS - SurgicalCriticalCare.net
surgicalcriticalcare.netMULTIPLE COMPARISONS / 43 • If the group means are similar to the grand mean of all of the data, the variance of the observations within the groups will be small and the groups will likely be very similar.
Data Analysis Declare data with Stata Cheat Sheet TIME ...
www.stata.comvariances include multiple comparison adjustment anova systolic drug webuse systolic, clear analysis of variance and covariance ... returns e-class information when post option is used Type help regress postestimation plots ... restore restore temporary copy to point last preserved create a new variable equal to average of price generate p_mean ...