Multiple Comparisons tests-
Use: If the results of an ANOVA yield a significant difference. ANOVA results only indicate that a difference exists among the mean, not where the difference is.
Multiple Comparison Tests are divided into three broad categories.
*Generic multiple comparisons tests- This test evaluates all possible pairs/ combinations of means. It includes Tukey’s HSD test and Student- Newman Kuels.
*Control group tests- Evaluates the differences between experimental group verses the control group. This includes the Dunnett’s test.
*Multiple contrasts tests- Can be used like the traditional test methods to evaluate differences among pairs of means but it is better used to evaluate homogeneous groups of means against other groups or individual means. This includes the Scheffe test.
No comments:
Post a Comment