Mann Whitney U Test

Question 1

Why are the three characteristics of a Mann Whitney U test?

Answer 1

1)Experiment design- Looks for a difference.
2)Independent measures
2)Collects ordinal/Interval data

Question 2

What is the calculation for mann whitney U?

Answer 2

Question 3

What is step 1 of the Mann Whitney U test?

Answer 3

Rank the data from both conditions TOGETHER.

Question 4

What is step 2 of the Mann Whitney U test?

Answer 4

Put the data (ranks) back into the table

Question 5

What is step 3 of the Mann Whitney U test?

Answer 5

Calculate Ra= sum of the ranks from condition A

Question 6

What is step 4 of the Mann Whitney U test?

Answer 6

Put Values into the formula

Question 7

What is step 5 of the Mann Whitney U test?

Answer 7

Decide which U value is the smallest= observed value.

Question 8

What’s the rule for significance for mann whitney U?

Answer 8

That the observed value must be less than the critical value as it doesn’t have an R in it.