To provide transparency of ARM calculations on reports, we provide examples that can be replicated by clients in other statistical packages (such as SAS or R) to verify the reported values in ARM.
The below Verification Packages address one or more ARM features. Each link below opens a page describing the theory and calculations performed by ARM. These pages may contain links to the following types of files:
|Levene's Test||Jul 1, 2014||Verifies Levene's test for homogeneity of variance, found on the AOV Means Table report.|
|Repeated Measures||Sep 25, 2018||Verifies missing data cases for the Repeated Measures report.|
|Moments||June 18, 2019||Discussion on Skewness and Kurtosis, common tests for normality of data.|
|Non-Parametric Statistics||Aug 26, 2019||
Details the non-parametric statistics that are run when the AR Action Code is used.
This includes the Kruskal-Wallis, Friedman's, and Aligned Rank tests.