Question:
A researcher studying a new migraine drug assigns 40 women, who have been matched based on height and weight, to one of the two groups. The first group gets the new drug and the other group gets a placebo. At the end of each migraine attack during a twelve month duration, the women were asked to rank the severity of their headache.
Can you identify the IVs, DVs, levels of IV if any, type of data for IV and DV and proper statistical test. Justify your answer.