The Independent T Test Is Often Well-Suited for Comparing the Effectiveness

Multiple Choice

The independent t test is often well-suited for comparing the effectiveness of two methods of treatment intervention for addressing some problem such as substance abuse because:

A) the independent variable is nominal level and dichotomous.
B) the dependent variable often can be measured at the interval or ratio level.
C) the two subsamples of clients can be of different sizes.
D) all of the above