A Dunn Procedure Has Been Performed for a 4-Group Comparison

question 1

Multiple Choice

A Dunn procedure has been performed for a 4-group comparison and a Bonferroni correction is applied. What should the value of alpha be to keep the risk of a Type I error to .05?

• A) .05 ÷ 2 = .025
• B) 05 ÷ 3 = .017
• C) 05 ÷ 4 = .0125
• D) 05 ÷ 6 = .008

---

Definitions:

Degrees of Freedom

The number of independent values or quantities that can variably assign to a statistical calculation without breaking any constraints.

P-Value

The probability of obtaining test results at least as extreme as the ones observed during the test, assuming the null hypothesis is true.

Capital Punishment

A legal penalty in some jurisdictions where the state executes a person as a punishment for a crime.