a z-test, a t-test, or an A.N.O.V.A.

PART 1. Find a scholarly, peer-reviewed study on any behavioral or social science topic that used a repeated measures design. Reference the study and summarize the research question, the subjects, and the variable(s) of interest. What statistical analysis was used and what were the results? Were there any statistically significant differences? What does it mean for the results to be statistically significant? What does this mean specifically for the differences assessed in this study? Cite your study using APA format.
PART 2. A researcher wishes to study the effect of a new drug on blood pressure. Would you recommend using a z-test, a t-test, or an A.N.O.V.A. for the analysis? Explain your answer. What would your choice of test depend on? For the test you select, explain your design and your comparison groups. Would the hypothesis be directional or non-directional? Would the test be one-tailed or two-tailed? What would be the null and what would be the alternative hypothesis?