Learning Objectives

  • Distinguish between nonparametric and parametric tests.
  • Explain how the test statistic is computed for a chi-square test.
  • Calculate the degrees of freedom for the chi-square goodness-of-fit test and locate critical values in the chi-square table.
  • Compute the chi-square goodness-of-fit test and interpret the results.
  • Identify the assumption and the restriction of expected frequency size for the chi-square test.
  • Calculate the degrees of freedom for the chi-square test for independence and locate critical values in the chi-square table.
  • Compute the chi-square test for independence and interpret the results.
  • Compute effect size for the chi-square test for independence.
  • Summarize the results of a chi-square test in APA format.
  • Compute the chi-square goodness-of-fit test and the chi-square test for independence using SPSS.