When Evaluating the Effectiveness of an Intervention, It Would Be

Multiple Choice

When evaluating the effectiveness of an intervention, it would be appropriate to conduct a multiple analysis of variance (MANOVA) when:

A) There is more than one dependent variable.
B) We want to avoid inflating the probability of a Type 1 error.
C) The dependent variables being used are correlated with one another in such a way that an intervention will not have significant effects on any one of them alone, but will have a significant effect on a linear combination of them.
D) All of these are reasons for conducting a MANOVA.