Which Test?

• I'm examining relationships between variables
  • I'm dealing with two variables
    • correlation coefficient go
  • I'm dealing with more than two variables
    • Regression, factor analysis or canonical analysis
• I'm examining the differences between groups on one or more variables
  • The same participants are being tested more than once
    • I'm dealing with two groups
      • t-test for dependent samples go
    • I'm dealing with more than two groups
      • Related measures analysis of variance
  • The same participants are only being tested once
    • I'm dealing with two groups
      • t-test for independent samples go
    • I'm dealing with more than two groups
      • I'm dealing with one factor
        • Simple analysis of variance (ANOVA) go
      • I'm dealing with two or more factors
        • Factorial analysis of variance