Discussion:
Q1: In general, when the dependent variable is neither interval nor ratio in level of measurement -- i.e., is not numeric -- a nonparametric statistical test is required to test the null hypothesis. Find a recent article in a peer-reviewed journal that reports an empirical research study in which a nonparametric test was used to test the hypothesis.
Q2: Describe the research question being addressed, and identify the level of measurement of the dependent variable and the nonparametric test used. What were the independent variable(s) and their level(s) of measurement?