In a hypothesis test for matched or paired samples, subjects are matched in pairs and differences are calculated. The differences are the data. The population mean for the differences, μd, is then tested using a Student’s-t test for a single population mean with n –1 degrees of freedom...
A common approach in the case of a two category variable is to calculate the required number of discordant pairs, and then divide this by the expected proportion of discordant pairs to obtain the total sample size. An approximate solution for the number of discordant pairs is proposed for ...
Git stats 51commits Failed to load latest commit information. correlateim correlateimis a package for aligning images. The user interactively selects matching point pairs, then the transformation matrix is calculated and an image overlay result is returned. ...
The Wilcoxon Matched-Pairs Signed Ranks Test is a nonparametric test that is often viewed as being similar to Student’s t-Test for Matched Pairs, but it is used for ordinal data or data that seriously violate any semblance of normal distribution. Of course, there are many who would argue ...
Summary statistics were calculated for each service type within a matched pair and differences of outcomes from pairs were used to calculate effect sizes and 95% confidence intervals. Results 1063 participants enrolled in the study with 511 from mobile and 552 from clinic HCT services. The ...