8. Mann-Whitney

Question 1

When is a mann-whitney test used? (Mann-Whitney methods 2)

Answer 1

When sample size is unevenly distributed between the two groups

Question 2

How do you calculate mann-whitney? (Mann-Whitney methods 2)

Answer 2

1) rank scores
2) sum the ranks
3) calculate the ‘U’ value
4) look at the lowest ‘U’ value
5) compare to the critical table

Question 3

What do you not report in mann-whitney? (Mann-Whitney methods 2)

Answer 3

probability levels

Question 4

What must you report in mann-whitney? (Mann-Whitney methods 2)

Answer 4

the number of participants in each group