Learning Objectives

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