The document discusses the appropriate contexts for using independent (pooled) sample t-tests versus repeated measures (paired) t-tests. It also addresses the non-parametric equivalent of the independent sample t-test, provides formulas for degrees of freedom for both tests, and defines statistical power and its relationship to type II error.

1. When is it appropriate to use an independent (pooled) sample t-test instead of a repeated
measures (paired) t-test? What is the non-parametric equivalent to the independent sample t-test?
What is the formula for degrees of freedom for an independent (pooled) sample t-test and a
repeated measures (paired) t-test? Define power, and how is it related to Type II error?