The Main Difference Between a Correlated Groups T-Test and Independent

Multiple Choice

The main difference between a correlated groups t-test and Independent groups t-test include(s) _____.

A) an independent groups t-test assumes the distribution is normal
B) the correlated groups t-test assumes the independent variable is within subjects
C) the correlated groups t-test assumes the population mean is known
D) the independent groups t-test assumes the population means is known
E) none of these