Week 6 began statistical analysis using SPSS, specifically for non-parametric tests. Non-parametric data can be described as data that does not conform to normal distribution. A simple example is ranked data such as movie reviews (0 – 5 stars). A major limitation of non-parametric data is the increased sample size required to gain sufficient significance to reject a null hypothesis. A good summary of the assorted types of non-parametric tests.. Read More