Dependent (Paired) Samples t-test

General Notes

Also known as the paired-difference t-test.

The matched-pairs design is a simple example of a Randomized Block Design (see also Randomized Complete Block Design), where each pair of subjects forms a block.

See also Repeated Measures ANOVA.

Assumptions

The observations (here, the differences) are randomly selected from a population distribution that is normally distributed.

References

• NIST - Paired Samples t-Test

• StatSoft - t-Test for Dependent Samples