*Reading: Aron, Chapter 13*
1. Explain when nonparametric statistics are needed and compute a *χ*² for goodness of fit to test a hypothesis based upon a rational for expected means.
2. Compute a *χ*² statistic for the relationship of two nominal variables to test a hypothesis about the independence of the variables.
3. Use crosstabs to compute a *χ*² statistic for a contingency table using SPSS.
4. Compute and interpret an effect size for *χ*² findings from contingency tables.
5. Use tables to determine N needed for a given level of statistical power.
6. Recognize and understand concerns over the limits of small expected frequencies in using chi-squared tests.
7. Recognize how to display and interpret findings from contingency tables in articles. |