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PSY325 Statistics for Behavioral and Social Science

In this discussion, you will evaluate a research question and determine how that question might best be analyzed.  To do this, you will need to identify the appropriate application of course specified statistical tests, examine assumptions and limitations of course specified statistical tests, and communicate in writing critiques of statistical tests.

A researcher wishes to study the effect of a new drug on blood pressure. Consider and discuss the following questions as you respond:

1. Would you recommend using a z-test, a t-test, or an ANOVA for the analysis?  Explain your answer.

2. What would your choice of test depend on? For the test you select, explain your design and your comparison groups.

3. Would the hypothesis be directional or non-directional?

4. Would the test be one-tailed or two-tailed?

5. What would be the null and what would be the alternative hypothesis?

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