The Dependent Measures f-Test

There are two forms of the f-test, and each is applicable for sets of measurements that have been obtained in different ways. The method of data collection precisely and uniquely determines which of these two forms of statistical analysis is appropriate. Section 7.6 introduced the independent groups Mest, which is appropriate for the analysis of data collected during a study employing a parallel group study design. Another form of the Mest is called the dependent measures t-test. This test is sometimes called the related measures Mest, the repeated measures Mest, or the Mest for matched pairs. The name dependent measures Mest has been chosen here since the contrast with the word independent in the name independent groups Mest is clear. 

The dependent measures Mest uses the relationship between each pair of data in the steps necessary to calculate the test statistic f. Conceptually, the calculation of the test statistic is the same as for the independent groups Mest, as listed in Section 7.6  

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