II.B.4.a Hypothesis Testing IV: Two or More Sample Means: One IV

Below are some links that may help supplement our class discussion on this topic:

• J Brophy's lecture notes
  
• Lesson on one-way Analysis of Variance (ANOVA) from the Psych Department of UWSP
• J Wasson's lesson on one-way ANOVA

Here are links to help you in performing one-way ANOVA

• online
• make sure you click "Independent Samples" (NOT "Correlated Samples") in the set-up box
  
• using SPSS
• here are movie tutorials 1, 2, and 3
  
• making sense of the output
  
• using MS-Excel

It's important to remember that one-way ANOVA has assumptions that we might be violating. Visit Northwestern University Medical School's StatGuide and find out:

• ways to check if your data violated the assumptions
  
• ways to examine results to detect assumption violations
• alternatives if assumptions were violated