Learning Objectives

After reading this chapter, you should be able to:

  1. Define the one-way within-subjects ANOVA and identify each source of variation in this statistical procedure.
  2. Calculate the degrees of freedom for the one-way within-subjects ANOVA and locate critical values in the F table.
  3. Identify the assumptions for the one-way within-subjects ANOVA.
  4. Compute the one-way within-subjects ANOVA and interpret the results.
  5. Compute the Bonferroni procedure and explain why it is appropriate to use following a significant one-way within-subjects ANOVA.
  6. Compute and interpret proportion of variance for the one-way within-subjects ANOVA.
  7. Explain how the consistency of changes in the dependent variable across groups influences the power of a one-way within-subjects ANOVA.
  8. Summarize the results of the one-way within-subjects ANOVA in APA format.
  9. Compute the one-way within-subjects ANOVA and select an appropriate post hoc test using SPSS.